vector multiplied a matrix

Hi, I need this multiplication and I can't whats wrong

f=c.*T

where c and T are the attached files.

so I expect a raw vector f where:

f_11 = c_11*T_11 + c_12*T_21 + c_13*T_31 + c_14*T_41 + c_15*T_51;

f_12= c_11*T_12 + c_12*T_22 + c_13*T_32 + c_14*T_42 + c_15*T_52;

and so on.

It's really stupid i know, but I can''t figured out why it's not working.

c has 1 colum and 5 rows, T has 101 colums and 5 rows.

[James Tursa]

What version of MATLAB are you running?

[Paul Rogers]

2014b

[Stephen23]

https://blogs.mathworks.com/loren/2016/10/24/matlab-arithmetic-expands-in-r2016b/

[James Tursa]

Your notation is confusing. You say c has 5 rows and 1 column, yet you use c_12 in your example indicating it has 1 row and 5 columns.

Answer 1

[James Tursa]

Maybe this is what you want if c is 5 x 1 and T is 5 x 101:

f = c.' * T;

Answer 2

[the cyclist]

If your version of MATLAB is older than R2016b, then c will not be "implicitly expanded" to the size of T. You can do the following to get what you want:

f = bsxfun(@times,c,T)

[Paul Rogers]

I've just did it but I expeted f to be a raw not a matrix.

[the cyclist]

Sorry, I missed that you wanted the sum. What you want is actually a matrix multiplication, not an element-wise multiplication, which is the syntax you were trying to use. I think you want this:

f = T'*c;