MATLAB Application Example (9)-a\b solving systems of linear equations

Description: a\b to solve a linear equation group, just write the coefficient matrix A and resource vectors b , the solution can be obtained by removing the Left method (Gaussian elimination method). its invocation format is x=a\b.

" Example 1 "The following systems of linear equations are obtained:

Solution: Written in matrix form:

Use MATLAB to solve

Main function:

A=[1-2 3;3-2 1;1 1-1];

B=[2;7;1];

x=a\b

Solution to:

X =

1.6250

-1.5000

-0.8750

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MATLAB Application Example (9)-a\b solving systems of linear equations