How do I pass complex numbers to MATLAB Engine? (Python)

In Python I'm doing

import matlab.engine
eng = matlab.engine.start_matlab()
  ret = eng.circuit_values(1, 1, 1, 120, -60-103.92j, -60 + 103.92j)
  print(complex(ret))

But I get the error

Error using *

Complex integer arithmetic is not supported.

Is there anyway to work around this?

the .m file looks like this

function [VnN] = circuit_values(zA, zB, zC, VAN, VBN, VCN)

VnN = ((1/zA)*VAN + (1/zB)*VBN + (1/zC)*VCN)/((1/zA)+(1/zB)+(1/zC));

end

Any help is appreciated.

Answer 1

[arushi]

Hi Marvin C

To pass complex numbers to MATLAB from python, you can utilize the 'matlab.double' function and set the 'is_complex' parameter to 'True'.

This will allow you to create an array of complex numbers in Python and then pass it to MATLAB using the MATLAB engine.

Here's a sample Python script that demonstrates this process:

import matlab.engine
eng = matlab.engine.start_matlab()
a = matlab.double([[1.1+2.4j, 3+4j],[5.3,6.7]], is_complex=True)
ret = eng.example(a)

In the above code snippet, the function ‘example’ resides in the ‘.m’ file and this function takes the ‘a’ as an input, produces the output and returns it back to the python script.

Hope this helps.