How to combine multiple numbers into 1 number?
18 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I have the numbers R1, R2, Zr1, that I want to fuse together into 24000 . Zr1 is an array, while R1 and R2 are double. I have tried strcat but it only produces 240 0 0 which is not the intended 24000
R1 = 2
R2 = 4
Zr1 = 0 0 0
1 commentaire
Stephen23
le 25 Fév 2023
"Zr1 is an array, while R1 and R2 are double"
All doubles are arrays. Scalars are not a separate type, because in MATLAB everything is an array:
Réponse acceptée
Stephen23
le 25 Fév 2023
Modifié(e) : Stephen23
le 25 Fév 2023
General solution:
R1 = 2;
R2 = 4;
Zr1 = [0,0,0];
V = [R1,R2,Zr1];
N = 10.^(numel(V)-1:-1:0) * V(:)
4 commentaires
Stephen23
le 25 Fév 2023
"can you explain how N = 10.^(numel(V)-1:-1:0) * V(:) works?"
Break code down to know how it works. You can do this yourself.
R1 = 2;
R2 = 4;
Zr1 = [0,0,0];
V = [R1,R2,Zr1] % so V is a 1x5 vector: [10000's,1000's,100's,10's,1's]
Clearly all we need to do is to multiply the elements of V by the corresponding power of ten, and then add them together. Note that [10000,1000,100,10,1] is just [1e4,1e3,1e2,1e1,1e0] which is just 10.^[4,3,2,1,0]. So that is very easy to generate:
P = numel(V)-1:-1:0
Q = 10.^P
Then one simple matrix multiplication does both the multiplying and the addition:
Q * V(:)
Steven Lord
le 25 Fév 2023
Another way to generate the Q vector is with logspace.
Q = logspace(4, 0, 5)
Plus de réponses (1)
Alan Stevens
le 25 Fév 2023
Modifié(e) : Alan Stevens
le 25 Fév 2023
Do you mean
R1 = 2; R2 = 4; Zr1 = [0 0 0];
R = R1*10^4+R2*10^3+Zr1(1)*10^2+Zr1(2)*10+Zr1(3)
Alternatively:
R1 = 2; R2 = 4; Zr1 = [0 0 0];
R = [R1, R2, Zr1]
M = 10.^[4 3 2 1 0]
R = M*R'
0 commentaires
Voir également
Catégories
En savoir plus sur Creating and Concatenating Matrices dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!