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In this article, we will show you how to take or index the inverse of a matrix in Matlab®. Sometimes you need to use some linear algebraic calculations in Matlab®. Matlab® has a very special coding library for linear algebra calculations. Look at the usage examples of how to take the inverse of matrices and how to use them in mathematical calculations.
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>> a = [1 3 5;7 8 11;100 1 4]; b =inv(a) c = inv(a).*5 d = inv(a)+3 b = -0.0288 0.0096 0.0096 -1.4725 0.6813 -0.0330 1.0893 -0.4107 0.0179 c = -0.1442 0.0481 0.0481 -7.3626 3.4066 -0.1648 5.4464 -2.0536 0.0893 d = 2.9712 3.0096 3.0096 1.5275 3.6813 2.9670 4.0893 2.5893 3.0179 >>
To take the inverse of a matrix in Matlab®, you need to use the “inv()” command. It will generate the inverse of a matrix if you write the name of this matrix in this code in Matlab®.
‘a’ is the normal matrix created by us in Matlab® as shown above.
‘b’ is the matrix that we take as the inverse of ‘a’.
‘c’ is the multiplied inverse matrix of a that shows you can do mathematical calculations directly with inverses of matrices in Matlab®.
In ‘d’ we did the addition of an inverse matrix that also shows you can do mathematical calculations with this.
As you can see, taking inverses of various matrices in Matlab® is very easy and very useful.
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This article is prepared for completely educative and informative purposes. Images used courtesy of Matlab®
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