# How do you set the first column of a 4x4 matrix = a vector

6 visualizaciones (últimos 30 días)
Vincent Ogonda el 13 de Ag. de 2020
Comentada: hosein Javan el 13 de Ag. de 2020
Vector X [380 250 220 200]
Matrix C=
[1257 679 220 203 1567 155 234 432 2345 445 238 556] How do I set the first column of matrix C equal to x
##### 1 comentarioMostrar -1 comentarios más antiguosOcultar -1 comentarios más antiguos
Rik el 13 de Ag. de 2020
You will probably benefit from a tutorial to get started with Matlab. One of the free options is Onramp.

Iniciar sesión para comentar.

hosein Javan el 13 de Ag. de 2020
Editada: hosein Javan el 13 de Ag. de 2020
X = [380 250 220 200]
C=[1257 679 220 203
1567 155 234 432
2345 445 238 556];
C(1,:)=X; % set the first row of C equal to vector X
size of C = 3*4 , and size of X = 1*4. you can set the first row of C equal to X. if not, I assume it was:
X = [380; 250; 220; 200]
C=[1257 679 220
203 1567 155
234 432 2345
445 238 556];
C(:,1)=X; % set the first column of C equal to vector X
##### 5 comentariosMostrar 3 comentarios más antiguosOcultar 3 comentarios más antiguos
Vincent Ogonda el 13 de Ag. de 2020
X = [380; 250; 220; 200] C=[1257 679 220 203 1567 155 234 432 2345 445 238 556]; C(:,1)=X; % set the first column of C equal to vector X
It worked for the row and not the column. Error in simulation it shows
hosein Javan el 13 de Ag. de 2020
please copy and paste the code to your matlab command window. you have mistakenly defined matrix "C" as a row-vector rather than a 4*3 matrix. if you want to define a matrix in one line of code, use semicolon";" to distinguish rows.
C=[1257 679 220; 203 1567 155; 234 432 2345; 445 238 556];

Iniciar sesión para comentar.

### Categorías

Más información sobre Loops and Conditional Statements en Help Center y File Exchange.

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by