python_morsels/add/add.py

7 lines
329 B
Python

def add(*matrices):
get_shape = lambda matrix: [len(vector) for vector in matrix]
shape = get_shape(matrices[0])
if any(get_shape(matrix) != shape for matrix in matrices):
raise ValueError("Given matrices are not the same size.")
return [[sum(elt) for elt in zip(*vectors)] for vectors in zip(*matrices)]