https://github.com/teomandeniz/ft_math
The entire <math.h> library from scratch.
https://github.com/teomandeniz/ft_math
42 42-school 42projects 42school c math
Last synced: 4 months ago
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The entire <math.h> library from scratch.
- Host: GitHub
- URL: https://github.com/teomandeniz/ft_math
- Owner: TeomanDeniz
- License: mit
- Created: 2023-03-03T15:25:55.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2025-01-27T14:04:40.000Z (over 1 year ago)
- Last Synced: 2025-04-07T04:13:28.794Z (about 1 year ago)
- Topics: 42, 42-school, 42projects, 42school, c, math
- Language: C
- Homepage: http://maximum-tension.com/
- Size: 196 KB
- Stars: 14
- Watchers: 2
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# ft_math
`ft_math.h` is a remake library from original `` library.
Includes `C23`, `C11` and `C99` functions + their `float` types, can compilable and work all versions + compilers.
# Setup:
> **Windows:**
>
> You can double click `MAKE.bat` file and directly install it.
>
> Or in console, write `make` to compile the stup.
> **Linux, macOS:**
>
> In console, write `make` to compile the setup.
## PHONYS
Here's the arguments `MAKE.bat` and `Makefile` using:
> `fc`, `fclean`, `fclear` -> Clear both object and created products.
> `c`, `clean`, `clear` -> Clear only object files
> `re` -> Remake everything
Then, in console: you need to include your binary compiler library (.a file) via parameter while compiling your file.
```
GCC main.c mathft.a
```
# Trigonometric functions:
| Function Name | Function Parameter(s) | Description |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------- | --------------------------------------------------------------- |
| **[ft_sin](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_sin.c)** **[ft_sinf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_sinf.c)** | `double` x | Returns the sine of `x` |
| **[ft_cos](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_cos.c)** **[ft_cosf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_cosf.c)** | `double` x | Returns the cosine of `x` |
| **[ft_tan](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_tan.c)** **[ft_tanf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_tanf.c)** | `double` x | Returns the tangent of `x`. [sin(`x`) / cos(`x`)] |
| **[ft_asin](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_asin.c)** **[ft_asinf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_asinf.c)** | `double` x | Returns the arc sine in radians. (1 ≥ x ≥ -1) [Aka: sin⁻¹(x)] |
| **[ft_acos](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_acos.c)** **[ft_acosf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_acosf.c)** | `double` x | Returns the arc cosine in radians. (1 ≥ x ≥ -1) [Aka: cos⁻¹(x)] |
| **[ft_atan](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_atan.c)** **[ft_atanf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_atanf.c)** | `double` x | Returns the arc tangent of `x` |
| **[ft_atan2](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_atan2.c)** **[ft_atan2f](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_atan2f.c)** | `double` x, `double` y | Calculates the angle in radians for the quadrant |
| **[ft_csc](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_csc.c)** **[ft_cscf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_cscf.c)** | `double` x | Returns the cosecant of `x` |
| **[ft_sec](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_sec.c)** **[ft_secf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_secf.c)** | `double` x | Returns the secant of `x` |
| **[ft_cot](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_cot.c)** **[ft_cotf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_cotf.c)** | `double` x | Returns the cotangent of `x` |
| **[ft_sincos](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_sincos.c)** **[ft_sincosf](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_sincosf.c)** | `double` x, `double *` sine, `double *` cosine | Split `x` to given variables as sine and cosine |
| **[ft_sinpi](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_sinpi.c)** **[ft_sinpif](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_sinpif.c)** | `double` x | sin(`x` * M_PI) |
| **[ft_cospi](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_cospi.c)** **[ft_cospif](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_cospif.c)** | `double` x | cos(`x` * M_PI) |
| **[ft_tanpi](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_tanpi.c)** **[ft_tanpif](https://github.com/TeomanDeniz/ft_math/blob/main/Trigonometric/ft_tanpif.c)** | `double` x | tan(`x` * M_PI) |
# Hyperbolic functions:
| Function Name | Function Parameter(s) | Description |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------- | ------------------------------------------ |
| **[ft_sinh](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_sinh.c)** **[ft_sinhf](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_sinhf.c)** | `double` x | Computes the hyperbolic sine of `x` |
| **[ft_cosh](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_cosh.c)** **[ft_coshf](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_coshf.c)** | `double` x | Computes the hyperbolic cosine of `x` |
| **[ft_tanh](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_tanh.c)** **[ft_tanhf](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_tanhf.c)** | `double` x | Computes the hyperbolic tangent of `x` |
| **[ft_asinh](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_asinh.c)** **[ft_asinhf](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_asinhf.c)** | `double` x | Computes the arc hyperbolic sine of `x` |
| **[ft_acosh](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_acosh.c)** **[ft_acoshf](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_acoshf.c)** | `double` x | Computes the arc hyperbolic cosine of `x` |
| **[ft_atanh](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_atanh.c)** **[ft_atanhf](https://github.com/TeomanDeniz/ft_math/blob/main/Hyperbolic/ft_atanhf.c)** | `double` x | Computes the arc hyperbolic tangent of `x` |
# Exponential and Logarithmic functions:
| Function Name | Function Parameter(s) | Description |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------- | --------------------------------------------------- |
| **[ft_exp](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_exp.c)** **[ft_expf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_expf.c)** | `double` x | Computes e(2.71828) raised to the power of the given `x` |
| **[ft_exp2](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_exp2.c)** **[ft_exp2f](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_exp2f.c)** | `double` x | Computes `2` raised to the given power `x` |
| **[ft_exp10](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_exp10.c)** **[ft_exp10f](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_exp10f.c)** | `double` x | Calculate the exponent of `10` by `x` |
| **[ft_expm1](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_expm1.c)** **[ft_expm1f](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_expm1f.c)** | `double` x | Computes the Euler's number raised to the given `x`, (-1.0 `x`) |
| **[ft_frexp](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_frexp.c)** **[ft_frexpf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_frexpf.c)** | `double` x, `int *` exponent | Returns value of mantissa, and pointed to by `exponent` |
| **[ft_ilogb](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_ilogb.c)** **[ft_ilogbf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_ilogbf.c)** | `double` x | Extracts the value of the unbiased exponent from the `x` as `int` |
| **[ft_ldexp](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_ldexp.c)** **[ft_ldexpf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_ldexpf.c)** | `double` x, `int` exponent | Returns `x` multiplied by `2` raised to the power of `exponent` |
| **[ft_log](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_log.c)** **[ft_logf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_logf.c)** | `double` x | Calculation of the logarithm of `x` |
| **[ft_log2](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_log2.c)** **[ft_log2f](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_log2f.c)** | `double` x | Calculation of the base-2 logarithm of `x` |
| **[ft_log10](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_log10.c)** **[ft_log10f](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_log10f.c)** | `double` x | Calculation of the logarithm of `x` to the base of 10 |
| **[ft_log1p](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_log1p.c)** **[ft_log1pf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_log1pf.c)** | `double` x | Calculates the logarithm of one plus of `x` |
| **[ft_logb](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_logb.c)** **[ft_logbf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_logbf.c)** | `double` x | Extracts the unbiased radix-independent exponent from the `x` |
| **[ft_scalbln](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_scalbln.c)** **[ft_scalblnf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_scalblnf.c)** | `double` x, `long int` exponent | Returns `x` multiplied by `2` raised to the power of `exponent` |
| **[ft_scalbn](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_scalbn.c)** **[ft_scalbnf](https://github.com/TeomanDeniz/ft_math/blob/main/Exponential_Logarithmic/ft_scalbnf.c)** | `double` x, `int` exponent | Returns `x` multiplied by `2` raised to the power of `exponent` |
# Power functions:
| Function Name | Function Parameter(s) | Description |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------- | ------------------------------------------------ |
| **[ft_cbrt](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_cbrt.c)** **[ft_cbrtf](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_cbrtf.c)** | `double` x | Computes the cube root of `x` |
| **[ft_hypot](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_hypot.c)** **[ft_hypotf](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_hypotf.c)** | `double` p, `double` b | Find hypotenuse of two sides. h = √(p²+b²) |
| **[ft_invsqrt](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_invsqrt.c)** **[ft_invsqrtf](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_invsqrtf.c)** | `double` x | Fast inverse square root |
| **[ft_pow](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_pow.c)** **[ft_powf](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_powf.c)** | `double` base, `double` power | Calculates the angle in radians for the quadrant |
| **[ft_pow10](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_pow10.c)** **[ft_pow10f](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_pow10f.c)** | `double` x | Calculate the exponent of `10` by `x` |
| **[ft_sqrt](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_sqrt.c)** **[ft_sqrtf](https://github.com/TeomanDeniz/ft_math/blob/main/Power/ft_sqrtf.c)** | `double` x | Square root calculation of `x` |
# Rounding and Remainder functions:
| Function Name | Function Parameter(s) | Description |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------- | ------------------------------------------------------------------- |
| **[ft_ceil](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_ceil.c)** **[ft_ceilf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_ceilf.c)** | `double` x | Computes the nearest integer greater than `x` |
| **[ft_copysign](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_copysign.c)** **[ft_copysignf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_copysignf.c)** | `double` x, `double` y | Composes a result with magnitude of `x` and the sign of `y` |
| **[ft_fdim](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_fdim.c)** **[ft_fdimf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_fdimf.c)** | `double` x, `double` y | Returns the positive difference between `x` and `y` |
| **[ft_floor](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_floor.c)** **[ft_floorf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_floorf.c)** | `double` x | Returns the largest integer that is smaller than or equal to `x` |
| **[ft_fmod](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_fmod.c)** **[ft_fmodf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_fmodf.c)** | `double` x, `double` y | Gets the modalities of 2 numbers in "float" |
| **[ft_lrint](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_lrint.c)** **[ft_lrintf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_lrintf.c)** | `double` x | Roundoff the floating-point `x` to a long |
| **[ft_lround](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_lround.c)** **[ft_lroundf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_lroundf.c)** | `double` x | Computes the nearest integer value to `x` |
| **[ft_nan](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nan.c)** **[ft_nanf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nanf.c)** | `const char *` tag_pointer | Just returns NAN (**N**ot **A** **N**umber) |
| **[ft_nearbyint](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nearbyint.c)** **[ft_nearbyintf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nearbyintf.c)** | `double` x | Rounds the floating-point `x` to an integer value |
| **[ft_nextafter](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nextafter.c)** **[ft_nextafterf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nextafterf.c)** | `double` x, `double` y | Returns the next representable value of from in the direction of to |
| **[ft_nexttoward](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nexttoward.c)** **[ft_nexttowardf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_nexttowardf.c)** | `double` x, `long double` y | (Same with **ft_nextafter**) |
| **[ft_remainder](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_remainder.c)** **[ft_remainderf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_remainderf.c)** | `double` x, `double` y | Computes the IEEE remainder of floating point division operation |
| **[ft_remquo](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_remquo.c)** **[ft_remquof](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_remquof.c)** | `double` x, `double` y, `int *` quotient | Computes the floating-point remainder of the division operation |
| **[ft_rint](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_rint.c)** **[ft_rintf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_rintf.c)** | `double` x | Roundoff the floating-point `x` to an integer |
| **[ft_round](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_round.c)** **[ft_roundf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_roundf.c)** | `double` x | Returns the nearest integer value (rounded value) of the given `x` |
| **[ft_trunc](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_trunc.c)** **[ft_truncf](https://github.com/TeomanDeniz/ft_math/blob/main/Rounding_Remainder/ft_truncf.c)** | `double` x | Truncates the `x` by removing the fraction |
# Floating-point Classification functions:
| Function Name | Function Parameter(s) | Description |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------- | ------------------------------------------------------------------------- |
| **[ft_fpclassify](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_fpclassify.c)** **[ft_fpclassifyf](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_fpclassifyf.c)** | `double` x | Categorizes floating point value `x` into the following categories |
| **[ft_isfinite](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_isfinite.c)** | `double` x | Check if number is not infinity |
| **[ft_isinf](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_isinf.c)** | `double` x | Check if float number is inf number (Will also return -1 if "-inf") |
| **[ft_isnan](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_isnan.c)** | `double` x | Check if float number is non number |
| **[ft_isnormal](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_isnormal.c)** | `double` x | Check if number is normal to in use |
| **[ft_signbit](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_signbit.c)** | `double` x | Checking if the float number is minus or not |
| **[ft_significand](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_significand.c)** **[ft_significandf](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_significandf.c)** | `double` x | Retrieves the fractional part of a double-precision floating-point number |
# Bessel functions:
| Function Name | Function Parameter(s) | Description |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------- | ----------------------------------------------------------------- |
| **[ft_j0](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_j0.c)** **[ft_j0f](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_j0f.c)** | `double` x | Compute the Bessel function of the first kind of order zero (j0) |
| **[ft_j1](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_j1.c)** **[ft_j1f](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_j1f.c)** | `double` x | Compute the Bessel function of the first kind of order one (j1) |
| **[ft_jn](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_jn.c)** **[ft_jnf](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_jnf.c)** | `int` n, `double` x | Compute the Bessel function of the first kind of order `n` (jn) |
| **[ft_y0](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_y0.c)** **[ft_y0f](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_y0f.c)** | `double` x | Compute the Bessel function of the second kind of order zero (y0) |
| **[ft_y1](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_y1.c)** **[ft_y1f](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_y1f.c)** | `double` x | Compute the Bessel function of the second kind of order one (y1) |
| **[ft_yn](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_yn.c)** **[ft_ynf](https://github.com/TeomanDeniz/ft_math/blob/main/Bessel/ft_ynf.c)** | `int` n, `double` x | Compute the Bessel function of the second kind of order `n` (yn) |
# Other functions:
| Function Name | Function Parameter(s) | Description |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------- | ----------------------------------------------------------------------------------- |
| **[ft_erf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_erf.c)** **[ft_erff](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_erff.c)** | `double` x | Computes the error function of the given `x` |
| **[ft_erfc](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_erfc.c)** **[ft_erfcf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_erfcf.c)** | `double` x | Computes the complementary error of `x` |
| **[ft_fibonacci](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fibonacci.c)** | `unsigned long long` number | Every number in the sequence is the sum of two numbers preceding it in the sequence |
| **[ft_fma](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fma.c)** **[ft_fmaf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fmaf.c)** | `double` x, `double` y, `double` z | `(x * y + z)` |
| **[ft_fabs](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fabs.c)** **[ft_fabsf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fabsf.c)** | `double` x | Get the absolute value of a `x` |
| **[ft_fmax](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fmax.c)** **[ft_fmaxf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fmaxf.c)** | `double` x | If (`x` > `y`) return `x`, else return `y` |
| **[ft_fmin](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fmin.c)** **[ft_fminf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_fminf.c)** | `double` x | If (`x` < `y`) return `x`, else return `y` |
| **[ft_lerp](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_lerp.c)** **[ft_lerpf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_lerpf.c)** | `double` x, `double` y, `double` f | Linear interpolation. |
| **[ft_lgamma](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_lgamma.c)** **[ft_lgammaf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_lgammaf.c)** | `double` x | Computes the logarithm of the absolute `x` of the gamma function |
| **[ft_modf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_modf.c)** **[ft_modff](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_modff.c)** | `double` x, `double *` integer | Splits fraction an integer in float number (Returns fraction) |
| **[ft_tgamma](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_tgamma.c)** **[ft_tgammaf](https://github.com/TeomanDeniz/ft_math/blob/main/Other/ft_tgammaf.c)** | `double` x | Compute the gamma function of `x` |
# Neural Network functions:
| Function Name | Function Parameter(s) | Description |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------- | ----------------------------------------------------------------------- |
| **[ft_elu](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_elu.c)** **[ft_eluf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_eluf.c)** | `double` x, `double` aplha | "Exponential Linear Unit" Determines the slope for negative input |
| **[ft_leakyrelu](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_leakyrelu.c)** **[ft_leakyreluf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_leakyreluf.c)** | `double` x, `double` aplha | ReLU, But has a small slope for negative values instead of a flat slope |
| **[ft_mish](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_mish.c)** **[ft_mishf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_mishf.c)** | `double` x | Hyperbolic tangent function, and `softplus` is the smooth approximation |
| **[ft_prelu](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_prelu.c)** **[ft_preluf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_preluf.c)** | `double` x, `double` aplha | ReLU, But has a small slope for negative values instead of a flat slope |
| **[ft_relu](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_relu.c)** **[ft_reluf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_reluf.c)** | `double` x | "The Rectified Linear Unit" Returns `0` if `x` is negative |
| **[ft_sigmoid](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_sigmoid.c)** **[ft_sigmoidf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_sigmoidf.c)** | `double` x | Performs the role of an activation function in machine learning |
| **[ft_softmax](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_softmax.c)** **[ft_softmaxf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_softmaxf.c)** | `double *` x, `int` size | Normalizes the input array `x` by exponentiating each element |
| **[ft_softmedian](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_softmedian.c)** **[ft_softmedianf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_softmedianf.c)** | `double *` x, `int` size, `double` alpha | Defined as the weighted average of the elements in a vector `x` |
| **[ft_softmin](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_softmin.c)** **[ft_softminf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_softminf.c)** | `double *` x, `int` size, `double` alpha | Aka: softmax(-`x`) |
| **[ft_swish](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_swish.c)** **[ft_swishf](https://github.com/TeomanDeniz/ft_math/blob/main/Neural_Network/ft_swishf.c)** | `double` x | Allows for a more flexible range of `x` |
# Constants:
| Define Name | Value |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------ |
| **[M_E](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L17)** **[M_E_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L72)** | `2.71828182845904523536` (Aka: `Euler's number`) |
| **[M_LOG2E](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L20)** **[M_LOG2E_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L75)** | `1.44269504088896340736` (Aka: `log2(e)`) |
| **[M_LOG10E](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L23)** **[M_LOG10E_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L78)** | `0.43429448190325182765` (Aka: `log10(e)`) |
| **[M_LN2](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L26)** **[M_LN2_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L81)** | `0.69314718055994528623` (Aka: `ln(2)`) |
| **[M_LN10](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L29)** **[M_LN10_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L84)** | `2.30258509299404568402` (Aka: `ln(10)`) |
| **[M_PIX2](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L32)** **[M_PIX2_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L87)** | `6.28318530717958647692` (Aka: `M_PI * 2`) |
| **[M_PIX2_3](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L35)** **[M_PIX2_3_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L90)** | `4.71238898038400589261` (Aka: M_PI * 2 / 3) |
| **[M_PI](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L38)** **[M_PI_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L93)** | `3.14159265358979323846` (π) |
| **[M_PI_2](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L41)** **[M_PI_2_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L96)** | `1.57079632679489661923` (Aka: `M_PI / 2`) |
| **[M_PI_4](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L44)** **[M_PI_4_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L99)** | `0.78539816339744830961` (Aka: `M_PI / 4`) |
| **[M_1_PI](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L47)** **[M_1_PI_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L102)** | `0.31830988618379067153` (Aka: `1 / M_PI`) |
| **[M_2_PI](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L50)** **[M_2_PI_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L105)** | `0.63661977236758134307` (Aka: `2 / M_PI`) |
| **[M_SQRT2](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L53)** **[M_SQRT2_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L108)** | `1.41421356237309504880` (Aka: `sqrt(2)`) |
| **[M_SQRT1_2](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L56)** **[M_SQRT1_2_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L111)** | `0.70710678118654752440` (Aka: `1 / sqrt(2)`) |
| **[M_SQRTPI](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L59)** **[M_SQRTPI_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L114)** | `1.77245385090551588191` (Aka: `sqrt(PI)`) |
| **[M_2_SQRTPI](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L62)** **[M_2_SQRTPI_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L117)** | `1.12837916709551257390` (Aka: `2 / sqrt(pi)`) |
| **[M_INVSQRTPI](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L65)** **[M_INVSQRTPI_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L120)** | `0.56418958354775627928` (Aka: `invsqrt(pi)`) |
| **[M_TPI](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L68)** **[M_TPI_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L123)** | `0.63661977236758138243` (Aka: `2 / PI`) |
# Trigonometric Constants:
| Define Name | Value |
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------- |
| **[M_0DEG](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L129)** **[M_0DEG_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L151)** | `0` |
| **[M_1DEG](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L132)** **[M_1DEG_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L154)** | `0.0174532925199` |
| **[M_45DEG](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L135)** **[M_45DEG_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L157)** | `π / 4` |
| **[M_90DEG](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L138)** **[M_90DEG_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L160)** | `π / 2` |
| **[M_180DEG](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L141)** **[M_180DEG_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L163)** | `π` |
| **[M_270DEG](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L144)** **[M_270DEG_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L166)** | `π * 2 / 3` |
| **[M_360DEG](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L147)** **[M_360DEG_F](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L169)** | `π * 2` |
# Constants:
| Define Name | Value |
| ----------------------------------------------------------------------------------- | ------------------------------- |
| **[FLT_MAX](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L176)** | `3.40282347E+38F` |
| **[FLT_MIN](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L179)** | `1.17549435E-38F` |
| **[FLT_EPSILON](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L182)** | `1.19209290E-7F` |
| **[DBL_MAX](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L187)** | `1.7976931348623158E+308` |
| **[DBL_MIN](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L190)** | `2.2250738585072014E-308` |
| **[DBL_EPSILON](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L193)** | `2.2204460492503131E-16` |
| **[LDBL_MAX](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L198)** | `1.18973149535723176502E+4932L` |
| **[LDBL_MIN](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L201)** | `3.36210314311209350626E-4932L` |
| **[LDBL_EPSILON](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L204)** | `1.08420217248550443401E-19L` |
# Environments for **[ft_fpclassify](https://github.com/TeomanDeniz/ft_math/blob/main/Floating-point_Classification/ft_fpclassify.c)** function:
| Define Name | Value |
| ----------------------------------------------------------------------------------- | ----- |
| **[FP_NAN](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L210)** | `0` |
| **[FP_INFINITE](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L213)** | `1` |
| **[FP_ZERO](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L216)** | `2` |
| **[FP_SUBNORMAL](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L219)** | `3` |
| **[FP_NORMAL](https://github.com/TeomanDeniz/ft_math/blob/main/ft_math.h#L222)** | `4` |
# A Few Example(s):
```c
#include /*
* int printf(char *str, ...);
*/
#include
#include "ft_math.h"
int
main(void)
{
double x = 42;
double y = 5;
printf("Trigonometric functions:\n");
printf("[ sin(%d) = %f]\n", x, sin(x));
printf("[ft_sin(%d) = %f]\n", x, ft_sin(x));
printf("\n");
printf("[ cos(%d) = %f]\n", x, cos(x));
printf("[ft_cos(%d) = %f]\n", x, ft_cos(x));
printf("\n");
printf("[ tan(%d) = %f]\n", x, tan(x));
printf("[ft_tan(%d) = %f]\n", x, ft_tan(x));
printf("\n");
printf("[ asin(%d) = %f]\n", x, asin(x));
printf("[ft_asin(%d) = %f]\n", x, ft_asin(x));
printf("\n");
printf("[ acos(%d) = %f]\n", x, acos(x));
printf("[ft_acos(%d) = %f]\n", x, ft_acos(x));
printf("\n");
printf("[ atan(%d) = %f]\n", x, atan(x));
printf("[ft_atan(%d) = %f]\n", x, ft_atan(x));
printf("\n");
printf("[ atan2(%d, %d) = %f]\n", x, y, atan2(x, y));
printf("[ft_atan2(%d, %d) = %f]\n", x, y, ft_atan2(x, y));
printf("\n\n");
printf("[ log(%d) = %f]\n", x, log(x));
printf("[ft_log(%d) = %f]\n", x, ft_log(x));
printf("\n");
printf("[ log1p(%d) = %f]\n", x, log1p(x));
printf("[ft_log1p(%d) = %f]\n", x, ft_log1p(x));
printf("\n");
printf("[ log10(%d) = %f]\n", x, log10(x));
printf("[ft_log10(%d) = %f]\n", x, ft_log10(x));
printf("\n\n");
printf("Power functions:\n");
printf("[ pow(%d, %d) = %f]\n", x, y, pow(x, y));
printf("[ft_pow(%d, %d) = %f]\n", x, y, ft_pow(x, y));
printf("\n");
printf("[ sqrt(%d) = %f]\n", x, sqrt(x));
printf("[ft_sqrt(%d) = %f]\n", x, ft_sqrt(x));
printf("\n\n");
double nan = (0.0 / 0.0);
double inf = (1.0 / 0.0);
printf("[ isnan = %f]\n", isnan(nan));
printf("[ft_isnan = %f]\n", ft_isnan(nan));
printf("\n");
printf("[ isnan = %f]\n", isnan(-nan));
printf("[ft_isnan = %f]\n", ft_isnan(-nan));
printf("\n");
printf("[ ininf = %f]\n", isinf(inf));
printf("[ft_isinf = %f]\n", ft_isinf(inf));
printf("\n");
printf("[ ininf = %f]\n", isinf(-inf));
printf("[ft_ininf = %f]\n", ft_isinf(-inf));
printf("\n\n");
printf("Other functions:\n");
double pi = 3.1415;
double temp = 0;
printf("[ fabs(%d) = %f]\n", -x, fabs(-x));
printf("[ft_fabs(%d) = %f]\n", -x, ft_fabs(-x));
printf("\n");
printf("[ fmod(%d, %d) = %f]\n", x, y, fmod(x, y));
printf("[ft_fmod(%d, %d) = %f]\n", x, y, ft_fmod(x, y));
printf("\n");
printf("[ modf = %f] {modf(pi, &temp)}\n", modf(pi, &temp));
printf("[ modf temp = %f] {temp}\n", temp);
printf("[ ft_modf = %f] {ft_modf(pi, &temp)}\n", ft_modf(pi, &temp));
printf("[ft_modf temp = %f] {temp}\n", temp);
return (0);
}
```