Dot Product Array
import numpy.matlib
import numpy as np
a = np.array([[1,2],[3,4]])
b = np.array([[11,12],[13,14]])
np.dot(a,b)
Long Lark
import numpy.matlib
import numpy as np
a = np.array([[1,2],[3,4]])
b = np.array([[11,12],[13,14]])
np.dot(a,b)import numpy as np
# input: [[1,2,3,...], [4,5,6,...], ...]
def dot_product(vector, print_time= True):
if print_time:
print("----Dot Product----")
dot_product = []
for j in range(len(vector[0])):
col = []
for i in range(len(vector)):
col.append(vector[i][j])
prod_col = np.prod(col)
dot_product.append(prod_col)
sum_dot_product = np.sum(dot_product)
if print_time:
print(f"input vector: {vector}, => dot product = {sum_dot_product}")
print("================================")
return sum_dot_product
vector1 = [1,2,3]
vector2 = [4,5,6]
vector3 = [2,4,3]
vector4 = [2,4,3]
vector = [vector1, vector2, vector3, vector4]
dot_product(vector)
# or
dot_product([vector2, vector4])
# or
# the False parameter, disables the printing in the function.
print(dot_product(vector,False))