how can i do Matrix multiplication with 3 matrices
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Azime Beyza Ari
am 10 Apr. 2022
Kommentiert: Azime Beyza Ari
am 11 Apr. 2022
Hello everyone,
I have 3 matrixs with dimensions;
x[36,36] , rij[36,36], and ai[36,1]
i wanna multpily these matrixes and sum each of them. what i want should look like this;
x(1,1)*r(1,1*ai(1)+x(1,2)*r(1,2)*ai(1)+.....+
x(2,1)*r(2,1)*a(2)+x(2,2)*r(2,2)*a(2)+....+
x(36,1)*r(36,1)*a(36)+x(36,36)*r(36,36)*a(36)
i have tried this;
z= sum((x.*rij)*a,'all');
but this is doing this ;
x(1,1)*r(1,1*ai(1)+x(1,2)*r(1,2)*ai(2)+.....+x(2,1)*r(2,1)*a(1)+x(2,2)*r(2,2)*a(2)+....+ x(36,1)*r(36,1)*a(1)+x(36,36)*r(36,36)*a(36)
But this is not i want!
Hope what i want to do is clear!
Thank you in advance!
2 Kommentare
Walter Roberson
am 10 Apr. 2022
Are you sure that the second indices for r should be calculated in terms of ai(1) ?
x(1,1)*r(1,1*ai(1)+x(1,2)*r(1,2)*ai(1)+.....+
^^^^
Notice that you did not close the ) after r(1,1
x(2,1)*r(2,1)*a(2)+x(2,2)*r(2,2)*a(2)+....+
Notice that you do close the ) after r(2,1) .
Akzeptierte Antwort
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Matrix Indexing finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!