solve over determined system of linear equations in matlab

To solve an overdetermined system of linear equations in MATLAB, one can use the least squares method. The backslash operator in MATLAB \ is an easy way to solve a system of linear equations using least squares.

First, define the matrices A and b in the equation Ax=b. A is a matrix with dimensions m x n where m > n. b is a vector with length m.

main.m
A = [2 3; 4 5; 6 7; 8 9];
b = [10; 20; 30; 40];
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To solve the equation, simply use the backslash operator:

main.m
x = A\b
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The output vector x will be the solution to the system of equations.