LU decomposition using Doolittle's Method with MATLAB code

[@وردةالزنبق-ع5ح]

I am a student in the Department of Mathematics from Iraq. I thank you very much because I benefited a lot from the excellent explanation. I even speak Arabic and do not understand Hindi, but your explanation was excellent, even though I do not understand your language, but I understood the explanation. Thank you very much.

[@gopinathchakraborty2694]

Thank you very much Atik .... I was stuck with the algorithm for weeks.... Now I can run my simulation

[@divyadhaka1619]

Great explanation...

[@skusaid8512]

Assalamualaikum Sir ur gr8. Love from Srinagar Kashmir

[@rutvikrajpadhiyar3545]

Excellent 👍🏻

[@sayakkarmakar4873]

very nice video. thank you sir

[@rahuldorai6628]

Thank you so much you explained this complicating looking problem in a most simple way.Great work indded❤❤

[@anushranka3679]

amazing explanations!!

[@saroshrizvi2498]

You are goated bro! love your videos

[@NairutyaPatel]

Thank You sir, Very helpful

[@usernameisamyth]

code: --------- clc;clear all; A=input('Enter the coefficient matrix: '); b=input('Enter the vector of constants: '); N=length(A); L=zeros(N,N); U=zeros(N,N); for i=1:N L(i,i)=1; end U(1,:)=A(1,:); L(:,1)=A(:,1)/U(1,1); for i=2:N for j=i:N U(i,j)=A(i,j)-L(i,1:i-1)*U(1:i-1,j); end for k=i+1:N L(k,i)=(A(k,i)-L(k,1:i-1)*U(1:i-1,i))/U(i,i); end end L,U y=L\b x=U\y

[@md.moinuddin6540]

Thanku Rimon Sir

[@akashgupta6414]

Very nice explanation

[@ankitmishra2723]

Thanks sir❤

[@idreesafridi6494]

Amazing

[@shirishkrishna3155]

it doesnt work for non square matrix,how to fix that

[@idreesafridi6494]

Great work

[@parthadutta1553]

Thank you very much mashallah

[@yonathanbomisso7650]

Puis-je avoir le pdf de cette méthode ?

[@m.eminerdogan5371]

firstly thx for video but ı have problem with NAN and İnf , how can ı fix that ?

[@samytee3282]

Well explained,👍

[@eedeatlikkle3652]

You are a king! Best explanations I have ever come across! I was wondering if you will be covering initial value problems and boundary value problems using matlab? Since you explain concepts very well, it would be very helpful.

[@ATTIQIQBAL]

Will do in future

[@deepeshkumargupta5801]

Well explain.. Thank you

[@meloncherrysoda2536]

Thank you sir your work is amazing!

[@imtiazshah1775]

well explained 👍

[@muradsaleem9746]

Very informative

[@omarsoliman7124]

Unrecognized function or variable 'B'. Error in LU_Decomposition (line 20) Y(1) = B(1)/L(1,1);

[@ATTIQIQBAL]

Send screenshot of your code at [e-mail]

[@ala4942]

hi, did you get answer? I have the same problem

[@ebtehalalmohaimeed3839]

your work is great and if can you write the code under the video, this will be so helpful

[@ATTIQIQBAL]

Then who will take intrest in watching the video. :D

[@ebtehalalmohaimeed3839]

@@ATTIQIQBAL Thanks too much, I understand your opinion

[@syedhashimnaqvi3321]

Thank you sir❣️

[@royblack8568]

Nice video bro, i'm mexican ando i don't understand well all words that you say, It would be easier if you could put subtitles of what you say

[@ATTIQIQBAL]

Thank you for feedback. I will work on it

[@siddhanthmadhavan1468]

sir, i am getting error like "Index in position 1 exceeds array bounds (must not exceed 1)" in line number 13 in my program when i typed the same like u have typed sir. pls help in resolving my error asap.

[@ATTIQIQBAL]

Email the screenshot of your code and output at [e-mail]

[@siddhanthmadhavan1468]

@@ATTIQIQBAL i have mailed sir

[@seveneightsix5289]

@@ATTIQIQBAL sir please help me i have some errors

[@tranthanhtruong4205]

Can you give me the slide show please? Thank you very much

[@tirthakgayen2181]

can you make a video for cholesky decomposition, please

[@ATTIQIQBAL]

Working on it.

[@tirthakgayen2181]

@@ATTIQIQBAL if u can make it within this week ..i would be grateful. thanks in advance

[@mrigankchhabra3844]

Greetings Mr.Iqbal, I am watching your video lectures of coding matrix problems, and I am finding it incredibly useful. But have a small query too, may you please explain it again the reason behind of taking zeros, Is this a function and what does it actually signify? Regards

[@ATTIQIQBAL]

First of all thank you for your feedback and now about your query, actually I'm just initializing the matrices with all entries zero and then i will update those entries according to desired algorithm. I hope it helps.

[@mrigankchhabra3844]

@@ATTIQIQBAL, Thank you for your message. That makes perfect sense and yes I noticed when applying parenthesis (the round brackets using shift and 9, shift and 0) it forms rows and columns of matrix and zeros acts as a function. Overall, zeros(m,n) forms a matrix of zeros values of all elements with m rows and n columns. I am having some more queries regarding the Matlab, may you please let me know the best way of contacting you? Regards

[@ATTIQIQBAL]

Yes you're absolutely right about this concept. Reach me through email at [e-mail]

[@zumrakayani2584]

👍

[@daniyal946]

this is a good method to solve lud composition,but there is a built in function in matlab to solve lud coposition. clear; clc; A = [2 4 -6; 1 5 3; 1 3 2]; b = [-4; 10; 5]; [L, U] = lu(A); y = L\b; x = U\y; disp("Solution:"); disp(x);

[@shahimtiazali6803]

👍