[Numpy-discussion] conversion to complex

[Eric H. <eha...@ho...>]

I have an array of floats that is an interleaved stream of complex =
(real/imag) values that I want to promote to complex.  My current method =
uses the following

a=3Darray([1,2,3,4])

b =3D a[0:4:2] + cmath.sqrt(-1)*a[1:4:2]

Is there a more elegant way ?  I am hoping to avoid explicit for loops =
etc