how to multiply matrices using numpy code example
Example 1: python numpy multiply matrices
a = np.array([[-6, 1], [1, 1]])
b = np.array([[0], [8]])
c = a.dot(b) # multiply matrice a and b
Example 2: how to multiply matrices in python
# Program to multiply two matrices using list comprehension
# 3x3 matrix
X = [[12,7,3],
[4 ,5,6],
[7 ,8,9]]
# 3x4 matrix
Y = [[5,8,1,2],
[6,7,3,0],
[4,5,9,1]]
# result is 3x4
result = [[sum(a*b for a,b in zip(X_row,Y_col)) for Y_col in zip(*Y)] for X_row in X]