I have three separate matrix of x,y,z; all having size of 261*602, I want to combine them into a single matrix so that I can make a 3D plot from it, for example:

combine into:

Is there any simple way to do that? I have tried it on Origin Lab but it doesn't work.

CodePudding user response：

You can use numpy to do element-wise multiplication, along with other common linear algebra operations.

>>> import numpy as np
>>> a = np.arange(9).reshape((3,3))
>>> a
array([[0, 1, 2],
       [3, 4, 5],
       [6, 7, 8]])
>>> b = np.arange(9).reshape((3,3))
>>> c = np.arange(9).reshape((3,3))
>>> a * b * c
array([[  0,   1,   8],
       [ 27,  64, 125],
       [216, 343, 512]])

CodePudding user response：

If you want to perform element-wise multiplication of several arrays, you can take advantage of the reduce version of numpy.multiply:

lst = [a, b, c]
out = np.multiply.reduce(lst)

example output:

array([[  0,   6,  24],
       [ 60, 120, 210],
       [336, 504, 720]])

used input:

a = np.arange(9).reshape((3,3))
b = a 1
c = a 2