Sunday, 3 March 2019

Multiply two Matrix in Python

# Program to multiply two matrices using nested loops
# 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 = [[0,0,0,0],
[0,0,0,0],
[0,0,0,0]]
# iterate through rows of X
for i in range(len(X)):
# iterate through columns of Y
for j in range(len(Y[0])):
# iterate through rows of Y for k in range(len(Y)):
result[i][j] += X[i][k] * Y[k][j]
for r in result:
print(r)


Output:
[114, 160, 60, 27]
[74, 97, 73, 14]
[119, 157, 112, 23]

0 Comments:

Post a Comment

Popular Posts

Categories

AI (32) Android (24) AngularJS (1) Assembly Language (2) aws (17) Azure (7) BI (10) book (4) Books (146) C (77) C# (12) C++ (82) Course (67) Coursera (198) Cybersecurity (24) data management (11) Data Science (106) Data Strucures (8) Deep Learning (13) Django (14) Downloads (3) edx (2) Engineering (14) Excel (13) Factorial (1) Finance (6) flask (3) flutter (1) FPL (17) Google (21) Hadoop (3) HTML&CSS (47) IBM (25) IoT (1) IS (25) Java (93) Leet Code (4) Machine Learning (46) Meta (18) MICHIGAN (5) microsoft (4) Nvidia (1) Pandas (3) PHP (20) Projects (29) Python (888) Python Coding Challenge (285) Questions (2) R (70) React (6) Scripting (1) security (3) Selenium Webdriver (2) Software (17) SQL (42) UX Research (1) web application (8)

Followers

Person climbing a staircase. Learn Data Science from Scratch: online program with 21 courses