Finding the adjoint of a Matrix

Hi

I'm trying to find the adjoint of a matrix. On MathWorks documentation webpage, the instruction look something like below.Noticed that it is using a R2018b version. The Matlab version I'm using is R2017a.

When I put the example into matlab, what I get is as follows:

>> which adjoint C:\Program Files\MATLAB\R2017a\toolbox\symbolic\symbolic\@sym\adjoint.m % sym method

Does anyone know why do I get the error message and how to fix it?

Many thanks!

Answer 1

[Stephan]

Hi,

the function adjoint works on symbolic matrices in 2017a only - try:

A = sym(magic(3))
B = double(adjoint(A))

The follwing link is for R2017a documentation start site.

Best regards

Stephan

[Salad Box]

That works! Thank you.:)

Answer 2

[Matt J]

For numeric matrices, you can use this FEX contribution.

[Salad Box]

Thanks for sharing!:)