Python Program to Multiply Two Matrices

In this example, we will learn to multiply two matrices using nested loops.
We will derive the matrix multiplication formula and then we will switch to the editor to code this matrix multiplication logic up!
Multiplication of two matrices a and b is defined only if the number of columns in a is equal to the number of rows b
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[@CodeWithHarry]

If you share this playlist, make sure to tag me in your Instagram story. Python Practice Programs: kzbin.info/aero/PLu0W_9lII9agqZuv_XJen_BEHycIh-FmG C Practice Programs Playlist: kzbin.info/aero/PLu0W_9lII9ahSEQv6cHtu8JBXNgK2_QMX Instagram: instagram.com/codewithharry English channel: kzbin.info

[@cygnusaerospace9570]

Bhai image recognition in Python bana sekh do with new advance

[@sonisinha8912]

Sir please make video series on unity game engine for game development and for game programming.....plz reply

[@Movies_and_Masti]

Harry bhaiya plz help

[@CodeWithAaron]

Harry bhai aap powerpoint pe itne aache se kaise draw karte ho? Jisko Janna hai vo like karo

[@yashpatil5405]

Thank u Harry bhai!!! Abhi mai aapki Java ki series follow kr rha hu aur sath-sath python ki bhi practice ho rhi hai! Someone - Who is the best teacher in the world? Me - Harry bhai! Aap free me itne saare chize de rhe ho!!! Koi soch bhi nahi kr sakta ki free me itna kuchh mil skta hai! Aap mere inspiration ho! Thank u harry bhai! Ab meri hobby coding hai! Bahut maza ata hai aapke saath code krne me aisa lgta hai ki aap mere samne hi baithe ho aur mujhe sikha rhe ho!!! Thank u Harry bhai!

[@abdaihannan7147]

Love you bro... Your python tutorials really helped me and it encouraged me to learn more codings.

[@san_era]

To generate C C = [[0 for i in range(len(A[0])] for j in range(len(B))]

[@ajayansaroj5747]

syntax error hai

[@prateekyadav7679]

@@ajayansaroj5747 [[0 for i in range(len(A[0]))] for j in range(len(B))]

[@kushagrachaturvedi2144]

c = [[0] * m] * k

[@ilokebib]

If Harry hearts ❤️ my comment, my dream to become a successful programmer will be fulfilled😊

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Heart nehi mila

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[@BHARATMEENA-o8e]

A = [[3,2,1], [5,2,0], [1,0,4]] B = [[0,2,5,2], [2,0,1,1], [0,3,4,0]] # A(3x3) B(3x4) --> C(3x4) C = [[0 for x in range(len(B[0]))] for y in range(len(A))] print(C) for row in C: print(row) for i in range(0,len(A)): for j in range(0,len(B[0])): for k in range(0,len(B)): C[i][j] += A[i][k]*B[k][j] for row in C: print(row)

[@sonisinha8912]

Sir please make video series on unity game engine for game development and for game programming.....plz reply

[@mohitsharma99]

I I am begginer And you motivated for programming

[@NarendraSharmaa]

Very Precise and too the point video thanks and keep making more and more video's

[@shrikantshekhar9982]

program to check if you can perform matrix multiplication on 2 matrices A = [[1,2,3],[4,5,6],[7,8,9]] row1 = 0 for i in A: row1 = row1 + 1 column = len(i) print("A",i) print("Row1--",row1) print("Column1--",column) B = [[9,8],[7,6],[3,2]] row2 = 0 for j in B: row2 = row2 +1 column2 = len(j) print("A",j) print("Row2--",row2) print("Column1--",column2) if column == row2: print("Multiplication possible") else: print("Multiplication not possible")

[@abhishekgurav5878]

U R BEST TEACHER

[@irfanhassan5775]

c=np.zeros(len(a),len(b[0]))

[@shivanshgoyal310]

Its your 5th video today... I don't believe this!! 🔥🔥🔥

[@sandippankhaniya489]

Great video harry sir...sir muje kuch problems hai please help it in coding

[@aashishmalhotra]

We can make C = numpy.zeros( [ len(A) , len(b) ] , int)

[@rohitchitte5614]

thank you harry bhai this solution helped me a lot !.

[@marthusthang4291]

thanks a lot for explaining in such details.

[@aashishmalhotra]

Thanks bhai problem thi ismae and i will practice python playlist.

[@brightside1574]

Hello, can we do like this x1 = array(range(0,9)).reshape(3,3) print(x1) x2 = array(range(1,10)).reshape(3,3) print(x2) y=x1.dot(x2) print(y)

[@harshvardhan7762]

import numpy as np print("Enter the no. of rows and columns of matrix A with comma separated:") a = input("Enter here: ").split(",") r1 = int(a[0]) c1 = int(a[1]) A = [] print("Enter the no. of rows and columns of matrix B with comma separated:") b = input("Enter here: ").split(",") r2 = int(b[0]) c2 = int(b[1]) B = [] if c1 == r2: for i in range(c1): A1 = [] for j in range(r1): n1 = int(input(f"Enter the value of matrix {i}x{j} is ")) A1.append(n1) A.append(A1) for i in range(c2): B1 = [] for j in range(r2): n2 = int(input(f"Enter the value of matrix {i}x{j} is ")) B1.append(n2) B.append(B1) C = np.zeros([r1,c2],dtype=int) for i in range(c2): for j in range(r1): for k in range(c1): C[i][j] += A[i][k]*B[k][j] print(C) else: print("The condition doesn't satisfied....TRY AGAIN")

[@madhukardarade4133]

Awesome video Harry bhai !!

[@aryadas2422]

thanks

[@tehseenjahan7384]

Sir please make a program of taking matrix input from user and then how to multiply them.

[@068_gauravchakraborty]

# Function to form a matrix def matrix(m,n): o=[] for i in range(m): row=[] for j in range (n): inp=int(input("Enter the number:")) row.append(inp) o.append(row) print(*o,sep=" ") # to print the matrices in the right format print(" ") return o m=int(input("Enter the number of rows--MATRIX A:")) n=int(input("Enter the number of columns--- MATRIX A:")) m1=int(input("Enter the number of rows---MATRIX B:")) n1=int(input("Enter the number of columns --- MATRIX B:")) print("Please enter the values of Matrix A") A=matrix(m,n) print("Please enter the values of Matrix B") B=matrix(m1,n1) print("Please enter the values of Matrix C as 0 ") C=matrix(n,n1) # taking number of rows from A and Number of columns from B # Function to multiply the matrices def multiply(a,b,c): for i in range(0,len(C)): for j in range(0,len(C[0])): for k in range(0,len(B)): C[i][j]+=A[i][k]* B[k][j] print(*C,sep=" ") return C multiply(A,B,C)

[@awmdanger9677]

Adding two matrixes me hai. Harry bhai ki hi video hai. Dekh lo Jake.

[@aimunazhar3330]

Helpful Tutorial!!!

[@nehalingole1754]

Thanks for giving us awesome video

[@sneharajaparmarparmar]

Kuch samjh nahi aaya

[@Satyaprakash__1929]

Multiply any matrix def zeromatrix(m,n): output = [] for rowi in range(m): row = [] for coloumnj in range(n): row.append(int(0)) output.append(row) return output def matrixmultiply(A,B): x = len(A) y = len(A[0]) z = len(B[0]) # (x*y) X (y*z) doing output = zeromatrix(x,z) # appending into zeromatrix to get output matrux for i in range(x): for j in range(y): for k in range(z): # got all possible combinations of i j k # for using the following formula output[i][j] += A[i][k] * B[k][j] # += (add) karna hai not =(assign) #Summation of resp elements multiplication kiya return output # taking following matix as example A = [[1,2], [3,4]] B = [[4,3], [2,1]] print(matrixmultiply(A,B))

[@kshitijbhandari3219]

if len(a[0])==len(b): print("matrix multiplication is possible") c=[[0]*len(b[0])]*len(a) print(c)

[@garvitkohli9142]

Thank you bhai

[@hrishiraj1761]

Nice Video👍👍👍

[@satyajitdas2780]

Thanks, Harry Bhai. Maja agaya! Praji aise hi logical wale questions. chahiye tha! apka infix to prefix ka bhi gajab tha!

[@armanahmed4806]

Nice video harry bhai please make how to count a duplicate program in a list

[@TechWithRushabh]

Great Video Harry Bhai

[@ChSajjan]

Luv you sir my suggestion for next series after dsa and java is flutter, dart

[@prashunraj4578]

Bhaiya recently I saw your video on matrix multiplication using python program and I really liked it and in the video itself you asked us that if anyone can generate the list containing the required no of zeroes with certain rows and certain column for storing the multiplied value in it .So I tried to write the code and i was successful in creating the desired list but I don't know why I am getting the wrong answer of the matrix multiplication.Bhaiya can you please help me in identifying where is the error in the code.I have Been trying this for 5 days but till now I am not able to find it The code is the following:- p=eval(input("enter the value of your 1st matrix"))#in the form of list q=eval(input("enter the value of your 2nd matrix")) r=len(p) s=len(q) t=len(p[0]) u=len(q[0]) x=[] count=1 while count

[@068_gauravchakraborty]

MULTIPLICATION OF MATRICES BY TAKING INPUTS FROM THE USER # Function to form a matrix def matrix(m,n): o=[] for i in range(m): row=[] for j in range (n): inp=int(input("Enter the number:")) row.append(inp) o.append(row) print(*o,sep=" ") # to print the matrices in the right format print(" ") return o m=int(input("Enter the number of rows--MATRIX A:")) n=int(input("Enter the number of columns--- MATRIX A:")) m1=int(input("Enter the number of rows---MATRIX B:")) n1=int(input("Enter the number of columns --- MATRIX B:")) print("Please enter the values of Matrix A") A=matrix(m,n) print("Please enter the values of Matrix B") B=matrix(m1,n1) print("Please enter the values of Matrix C as 0 ") C=matrix(n,n1) # taking number of rows from A and Number of columns from B # Function to multiply the matrices def multiply(a,b,c): for i in range(0,len(C)): for j in range(0,len(C[0])): for k in range(0,len(B)): C[i][j]+=A[i][k]* B[k][j] print(*C,sep=" ") return C multiply(A,B,C)

[@lishapal8170]

Thank you

[@thejusa1766]

automation of resultant C Em = list() if len(A[0]) == len(B): for i in range(len(A)): Em += [[0] * len(B[0]) ] print(Em) else: print("not posible")

[@ujjwalandtanmay7917]

sir aapki videos amazing hoti hai but main chahata hoon ki aap ek app ko code karein by using python (Pure python)

[@bunnyrajender5124]

I have a python code for matrix multiplication In that code any two Matrices are multiplied We have to give the mattices two as input and get the result of matrix multiplication

[@sairsc8043]

I'm 12th grade and I don't know anything I got ur video notification and got some hope

[@amitverma7427]

Really going to do this

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Bro... Can you make a series video on how to create wordpress plugins

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Harry bhai knsa font use krte ho Agr ksi or ko pta h to kindly btade

[@koushikextras1013]

Most awaited

[@UmerKhan-ro3dy]

Harry bhai bnado wo wali video k kisi bhi matrix ko wo multiply krde ya btade k esa nai hoskta wala code please

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Harry bhai 👋👋

[@RohanDasRD]

Bhai Bhai Bhai Bhai Ek din mein 4 Video!

[@CodeWithHarry]

5th hai bhai ye subah se!

[@RohanDasRD]

@@CodeWithHarry yes 5th🙈

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Sir data structures and algorithms please

[@centralmotivation5256]

sir aap ne jo video me jarvis banaya tha vo kam nahi kar raha hai. please tell me

[@mohsinqureshi6850]

please tell me the code for automated matrix C ? Anyone?

[@AdityaSharma-ug6cp]

sir kya ap any matrix ka multipication bana sakte hai mujhe doubt ho rha hai multipication mai programm kam nhi kar rhe hai

[@kshitijpatil4590]

Harry bhai🤗

[@Prajwal985]

import numpy as np r_a = int(input("Enter the row for the first matrix : ")) c_a = int(input("Enter the column for the matrix : ")) r_b = int(input("Enter the row for the second matrix : ")) c_b = int(input("Enter the column for the second matrix : ")) if (c_a != r_b): print("Martix multiplication is not possible!") else: C = np.zeros([r_a,c_b],dtype = int) A = [] print("Enter the elements in the matrix A : ") for i in range(r_a): a = [] for j in range(c_a): a.append(int(input())) A.append(a) B = [] print("Enter the elements in the matrix B : ") for i in range(r_b): b = [] for j in range(c_b): b.append(int(input())) B.append(b) for i in range(0,len(C)): for j in range(0,len(C[0])): for k in range(0,len(B)): C[i][j] += A[i][k] * B[k][j] for row in C: print(row)

[@rishijha8892]

i have an idea make a complex vector space and then do operation

[@vaibhavkher6264]

What is len C[0]?

[@kaharabo6185]

Two matrices in your video's title, but in your example of codes 3 matrice you gave?

[@kaustubhdada5764]

TOO COOL BHAI

[@kshitijpatil4590]

Ha bhai banado

[@hassankhan3700]

how can i add two matrices with while loop

[@shubhamchitre4702]

good tutorial but too many ads!

[@shridumanish3506]

Ek doubt tha ki agar Vector multiplication na aata ho to, abhi tak to sirf physics me vector aaya hai 😂😂

[@kusumaglawe5455]

Nice

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Harry bhai banado video

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Program bhejduga ... kaha bheju? Aapki email?

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[@wizhdan]

Wish there were english subtitle, I cant understand a thing

[@ikshadubey5220]

i didn't understand "len" can you help?

[@rohitpatel2937]

Hi sir, I want help please please sir help me. I want devloped on project but mujhe idea nhi mile rha plz make one video on this topic COLLEGE FEST ONLINE REGISTRATION SYSTEM.

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🤟✌👍

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I am your Channel Subscriber now , will advise my friends to join as well .

[@er.sanaullah]

Sir PC build-up pe video bna do please

[@fundamovies]

Gaming chahiye bro

[@fundamovies]

Agar coding ke liye chahiye to bolo

[@er.sanaullah]

@@fundamovies coding ke liye chahiye

[@fundamovies]

@@er.sanaullah ok to AMD ryzen 5 3600 in cpu koi budget gpu lga lena koi budget wala meri suggestion hai gtx 1050 ti tumhare liye kafi hoga 256 gb ki ssd laga lo aur 1 tb ki hdd for storage cabinet your choice ram 8 gb is more than enough or sabse important motherboard me asus a320 lga lo budget me ban jayega pura

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Bhai why you ignore my comments Please tell me

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❤️

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😅😅

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6th comment

[@jeegrandmaster]

Op

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third comment

[@ehteshamahmad220]

so much ad this is disgusting