MATLAB: How to do tedious mathematical calculation with matlab

mathematical calculationscalar summation

it is really tedious, probably impossible, to do the following equation using a calculator. Please note that cosine and sine functions are in degrees

the result should b a scalar value if i am right?

k = 0:65119;
sum( cosd(3.6*k) .* sind(3.6*k) ).^2

Just verify once if this is the formula that you needed. You would have to define K, b and n beforehand.

symsum((d(k).*symsum((K(l)*((sin(b(n-1))).^(2.*l))),l,0,(1-k))),k,1,n)

The MATLAB operator "*" is matrix multiplication. Element-by-element multiplication is ".*"

cos(3.6*n) .* sin(3.6*n)