Register to reply 
Matlab character matrices 
Share this thread: 
#1
Feb2012, 05:37 PM

P: 75

Hi everyone,
I am wondering if I can input a matrix into Matlab that contains characters. I then would like to manipulate the matrix using row changing operations. Matlab, however, will not allow me to create a matrix with letters. Is there an equivalent to a matrix for character values that can have operations performed on them? Thanks. 


#2
Feb2112, 12:08 AM

PF Gold
P: 1,153

You may want to look into using a cell: http://www.mathworks.com/help/techdoc/ref/cell.html



#3
Feb2112, 06:37 AM

P: 75

Maybe I'm using cells incorrectly, but to test I am multiplying a 4x4 matrix / array with the 4x4 identity. It should return the original matrix / array. However, I get an error message that won't allow me to perform the operation.
"??? Undefined function or method 'mtimes' for input arguments of type 'cell'. This is irritating. I wanted to use this as a check for my homework but I can't. Is there anyway around this error? Thanks! 


#4
Feb2112, 07:58 AM

PF Gold
P: 1,153

Matlab character matrices
Are you just trying to do symbolic math with matrices? You can use sym or the shortcut syms to create symbolic variables and then create a matrix using them. E.g. for something like
[tex] \begin{vmatrix} a & b \\ c & d \end{vmatrix} = ad  bc [/tex] you could do:



Register to reply 
Related Discussions  
Matlab inline functions character replacement  Math & Science Software  0  
What are the meaning of monopole character and dipole character?  Special & General Relativity  2  
Get the contents of a file, character by character  Programming & Computer Science  7  
Matrices in matlab  Math & Science Software  2  
Matrices in Matlab  Math & Science Software  5 