How can I make a matrix with complex number entries with gonum/go?

Question

As it is written in the title, how can I create an instance of a matrix with complex128? What is the complex equivalent of the following?

matrix := mat.NewDense(2, 2, []float64{0, 0, 0, 3})

how can I write something like this?

Matrix :=  mat.NewDense(2, 2, []complex128{0, 0, 0, 3i})

score 1 · Answer 1 · answered May 31 '18 at 06:48

1

The Gonum mat package does not currently support complex128 values. It is something we are working on.

answered May 31 '18 at 06:48

kortschak

Main purpose of me is to make matrix multiplication with complex valued matrices. Would you recommend the blas package of gonum to do this as the methods accept complex128 slices or would you recommend another package in gonum which is more easily to handle? – Jun 01 '18 at 09:42
If you are able to use cgo in your project, the [gonum.org/v1/netlib/blas/netlib](https://godoc.org/gonum.org/v1/netlib/blas/netlib) implementation provides complex BLAS. – kortschak Jun 02 '18 at 10:15

score 1 · Answer 2 · answered Apr 21 '20 at 23:38

1

Now, Gonum supports complex matrices.

You can make one like this:

matrix := mat.NewCDense(2, 2, []complex128{0, 0, 0, 3i})

answered Apr 21 '20 at 23:38

Marc Bacvanski

2 Answers2