Teuchos_MathExpr: Parsing complex expressions

[fjrivero]

Question

We need to parse string math expression with complex syntaxis, as in, e^(jwt)) where j=sqrt(-1).
Does MathExpr accepts complex? Do we need to modify something to used?

Thanks.

[cgcgcg]

@bartlettroscoe ?

[jhux2]

@ibaned might be able to help, as well

[ibaned]

Hi @fjrivero !

One important thing I would like to tell you is that TeuchosParser has evolved into its own software here:

https://github.com/sandialabs/parsegen-cpp

I am not aware of anyone supporting complex numbers yet using these tools, but you should be able to create a modified version of, for example, this calculator tool:

https://github.com/sandialabs/parsegen-cpp/blob/main/src/parsegen_calc.cpp

If you replace double with std::complex<double> in that tool it may be a good starting point for what you are looking for.

Feel free to ask follow-up questions.

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