https://github.com/tien4112004/lab-ppt-ck

Lab PPT CK
https://github.com/tien4112004/lab-ppt-ck

Last synced: about 1 month ago
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Lab PPT CK

• Host: GitHub
• URL: https://github.com/tien4112004/lab-ppt-ck
• Owner: tien4112004
• Created: 2024-05-29T07:06:37.000Z (8 months ago)
• Default Branch: main
• Last Pushed: 2024-05-29T16:08:42.000Z (8 months ago)
• Last Synced: 2024-05-29T19:55:12.343Z (8 months ago)
• Language: MATLAB
• Size: 113 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Lab-PPT-CK

Lab PPT CK 

## Find root of a linear algebra systems

```matlab

% Define the coefficient matrix A and the right-hand side vector b

A = [3, 2; 1, 4];

b = [7; 3];

% Solve the system of equations Ax = b

x = A \ b; or x = x = linsolve(A,b)

```

## Get coefficients of the polynomial

```matlab

% For example, the polynomial is f = @(x) x^3 - 6x^2 + 11x - 6

coef = coeffs(f, All)

```

## Find root of a polynomial

```matlab

% Define the coefficients of the polynomial

% For example, for the polynomial x^3 - 6x^2 + 11x - 6, the coefficients are [1, -6, 11, -6]

coefficients = [1, -6, 11, -6];

% Find the roots of the polynomial

roots = roots(coefficients);

% If there's a complex one like: f = @(x)exp(m*x/10) - m*x^2 - x*sin(m*x/10)

% Use fsolve function with x0 is the initial value: 

roots = fsolve(f, x0) 

```