@polyvar does not allow two-dimensional variables

Specific Domains Optimization (Mathematical)
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1

I want define a polyvar with size 2*3. Several weeks ago, the following code works

using TypedPolynomials
@polyvar B[1:2,1:3]

But now I get this error:

Unsupported syntax. Expected x[a:b] for literal integers a and b

It only allows something like this: @polyvar B[1:2]. I wonder if anyone can help me with this? How can I define a matrix-sized polyvar? It is kind of important for me because I need to do matrix multiplication with the polyvar. Thanks in advance!

2

This is possible with DynamicPolynomials but not yet with TypedPolynomials.
The reason for this is that different variables have different types for TypedPolynomials so the @polyvar macro returns a tuple. In DynamicPolynomials, all variables have the same type so th macro returns an Array.

1 Like
3

Thanks for your reply, but it indeed happened with this piece of code. I did not use DynamicPolynomials at all. I wonder if you can help me figure out why.

Thanks a lot!

4

It is not possible with typed polynomials.

5

Oh I see. I misunderstood blegat’s earlier reply. Thanks!