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

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Thomas
Thomas 2023-3-23
评论： Johan Löfberg 2023-4-29
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?

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回答（1 个）

Sachin
Sachin 2023-3-23
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

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