https://github.com/saphereye/quick-calc
A versatile calculator created using flex, bison and c++
https://github.com/saphereye/quick-calc
Last synced: 11 months ago
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A versatile calculator created using flex, bison and c++
- Host: GitHub
- URL: https://github.com/saphereye/quick-calc
- Owner: Saphereye
- Created: 2024-04-22T15:55:53.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2024-06-06T08:51:26.000Z (about 2 years ago)
- Last Synced: 2025-02-04T20:17:46.438Z (over 1 year ago)
- Language: C++
- Homepage: https://saphereye.github.io/quick-calc/
- Size: 398 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
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README
# QuickCalc
A terminal-based calculator program was made using [flex](https://github.com/westes/flex), [bison](https://www.gnu.org/software/bison/), and C++.
## Features
- **Basic Arithmetic Operations:** Addition, subtraction, multiplication, and division are supported.
- **Built-in Functions:** The calculator includes a variety of built-in functions such as trigonometric functions (sin, cos, tan), logarithmic functions (log, log10), exponential functions (exp), square root (sqrt), and [more](https://github.com/Saphereye/quick-calc/blob/f303041237272f3e912d50a133932d89e0586228/src/parser.y#L23).
- **Reusing the previous answer:** The calculator keeps track of the previous answer and allows users to reference it in subsequent calculations using `_`. If you want to access the previous answer, use `_` in the calculation. If you want to use the answer two calculations ago, just use `__` (2 times `_`)
- **Error Handling:** Comprehensive error handling for invalid input and mathematical errors.
## Installation
1. Requirements: >=C++17, flex, bison
2. **Clone the Repository**: Clone this repository to your local machine.
```bash
git clone https://github.com/Saphereye/flex_bison_calc
```
3. **Build the project**
```bash
cd flex_bison_calc
make repl
```
## Features
- Basic arithmetic
```bash
> 3 * 4
12.000000
> 255 ** 4
4228250625.000000
> 1/6
0.166667
```
- Built-in functions
```bash
> sum(1, 2, 3, 4, 5, 6)
21.000000
> sin(3.14)
0.001593
> median(4, 5, 3, 2, 1)
3.000000
> 10%3
1.000000
> 10.1%3.1
0.800000
```
- Special functions and variables
```bash
> 5!
120.000000
> 5.1!
142.451944
> 5!!
6689502913449127120509299431182031258053015071153310066918800146811629520790841061032122839118801296905792978698449838385553111280551361744470298751804274423893297360062561614877543920066726903939072.000000
> 4C2
6.000000
> 4P2
12.000000
> e
2.718282
> pi
3.141593
```
- Referencing the previous answer
```bash
> 1+1
2.000000
> _+1
3.000000
> __+1
3.000000
```
- Descriptive error reporting
```bash
> 1+
Error [Line: 1 Column: 0]: syntax error, unexpected end of file
> sin(1,,2)
Error [Line: 2 Column: 7]: syntax error, unexpected ','
> sin(cos(sin(1) +))
Error [Line: 3 Column: 17]: syntax error, unexpected ')'
```