This is my code and:
this is error statement of code.
How can I solve those errors?
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The default implementation of
abs()only accepts numbers. In order to makeabs()for for expressions, you have to include themmxnlpmodule. This is explained in the documentation here.Note that this will change the type of your constraints from
linctrtonlctr, so you have to change that in your code as well.Finally, strict inequality is not supported. Instead
>is interpreted as boolean operator. For a constraint you have to>=. If you really need the expressions to be different from zero then there is no other option than to use an epsilon: replace> 0by>= epsfor a small numbereps.