Two matrix subtraction with each of different dimension

Hello,

I have two arrays , whose dimensions are different. for example : matrix A has the dimension 4x2

A=[1 4; 
2 1; 
3 1; 
8 1];

and Matrix B has the dimension 5x2.

B=[1 6; 
2 1; 
2 5; 
3 0; 
8 1];

When i subtract these two matrcies using C=A-B i am getting the following error

 "Matrix dimensions must agree"

So please let me know the function which hlps me to solve this problem Looking forward to hear from you .

Thanks Pankaja

[Stephen23]

Please stop posting duplicate questions:

http://de.mathworks.com/matlabcentral/answers/179418-subtract-two-matrices-and-find-the-difference

Answer 1

[Mischa Kim]

Pankaja, in general, you can only subtract matrices of equal size. What would you like to see happening?

[Michael Haderlein]

Still, it's not clear how this operation should look like. Can you show us what the result in your example should look like? Also, what do you mean with "edge coordinates of parallel lines"? Should the first column be the x values and the second column be the y values of the line? In this case, the coordinates totally don't describe straight lines but rather some curves.