"Undefined function 'equationsToMatrix' for input arguments of type 'sym'." Error

2 views (last 30 days)
Hello all,
I've been trying to deal with the equationsToMatrix function, but getting this "Undefined function 'equationsToMatrix' for input arguments of type 'sym'." error all the time.
To try, I took a sample code from Help. It gives the same error also.
syms x y z
[A,b] = equationsToMatrix([x+y-2*z==0,x+y+z==1,2*y-z+5==0], [x,y,z])
Any ideas? Version is 2014b.
BR, Ozgur

Accepted Answer

Ozgur on 19 Feb 2015
I think this is related to couple of issues combined. MATLAB was on E:\ drive, I'd uninstalled and installed it again on C:\.
I've made toolbox path cache update afterwards. Now it is working.
P.S.: After posting this question, I realized that most of the symbolic functions gone crazy. This problem is not directly related to equationsToMatrix function.
Thanks for the replies.

More Answers (2)

Erik S.
Erik S. on 18 Feb 2015
The code works for me.
Do you have symbolic toolbox installed?

Ozgur on 18 Feb 2015
  1 Comment
Erik S.
Erik S. on 18 Feb 2015
Edited: Erik S. on 18 Feb 2015
When I run your code (using R2014b) I get

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!