How to multiply two matrices together?

I need to create a new matrix C which is the sum of A multiplied by B(1)=1.7 and B(2)=1.1

>> A = [12 62 93 -8 22; 16 2 87 43 91; -4 17 -72 95 6]

A =

    12    62    93    -8    22
    16     2    87    43    91
    -4    17   -72    95     6

>> B=[1.7 1.1]'

B =

    1.7000
    1.1000

I could just do:

>> A*1.7+A*1.1

ans =

   33.6000  173.6000  260.4000  -22.4000   61.6000
   44.8000    5.6000  243.6000  120.4000  254.8000
  -11.2000   47.6000 -201.6000  266.0000   16.8000

but the real B I'm working with has too many numbers to just type them all

I tried bsxfun but it doesn't work

>> C=bsxfun(@times,A,B)

Error using bsxfun Non-singleton dimensions of the two input arrays must match each other.

Answer 1

[Azzi Abdelmalek]

Notice that A*B(1)+A*B(2)+...+A*B(n) is equal to A*(B(1)+B(2)+...B(n))

A = [12 62 93 -8 22; 16 2 87 43 91; -4 17 -72 95 6];
B=[1.7 1.1]';
C=A*sum(B)

[Tristan]

Thanks,

What if I had to add cosines or sines, as in C=cos(A*B)?

[Azzi Abdelmalek]

A = [12 62 93 -8 22; 16 2 87 43 91; -4 17 -72 95 6];
B=[1.7 1.1]';
s=cell2mat(arrayfun(@(x) cos(A*x),B','un',0))
[n,m]=size(A);
p=numel(B);
C=sum(reshape(s,n,m,p),3)

Answer 2

[Andrei Bobrov]

out = sum(cos(bsxfun(@times,A,reshape(B,1,1,[]))),3)