YALMIP polytope: Undefined function 'isinf' for input arguments of type 'sdpvar'.

I was running the example from https://yalmip.github.io/command/polytope/

which is

v = randn(2,10);

x = sdpvar(2,1);

P = polytope(v,x)

and I got the error

Undefined function 'isinf' for input arguments of type 'sdpvar'.

Error in polytope (line 24)

idx = isinf(arg2);

I think it is because there is a (standard) polytope function to create polytopes Ax <= b, but I want to use the polytope function from YALMIP which creates polytopes from a set of vertices. How can I make my script choose the "right" polytope function?

[Johan Löfberg]

that command still requires the develop branch

Answer 1

[Sachin]

Hi

I understand that you are getting the error ‘undefined function ‘isinf’ for input arguments of type ‘sdpvar’’.

A possible workaround would be to reinstall YALMIP.

Refer to the following page to install YALMIP :

https://www.mathworks.com/matlabcentral/answers/1923285-unrecognized-function-or-variable-yalmip?s_tid=srchtitle