Matlab Summation Cosine Sine operator

Hi all,

i have been looking at this matlab equation for sometime. I do not understand the sum operation used here. It is used to sum the sin for array b? Likewise for cos?

 a = atan2(sum(sin(b)),sum(cos(b)))/2/k;

Answer 1

[Mischa Kim]

Correct. b is an array (e.g. vector). The command applies the sine to all the components of b and then sums all those sine terms. Same is true for the cosines.

[nullpointer]

Thanks alot for your help!