how to do tedious mathematical calculation with matlab

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?

[Walter Roberson]

The equation seems to be missing from your Question ?

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

[Walter Roberson]

I see you have changed the wording of your question a little, and given the note about degrees, but the equation itself isn't there yet ?

[Passband Modulation]

sry, i just reuploaded the image, could you now see the equation?

Answer 1

[Walter Roberson]

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

[Passband Modulation]

cool, it really works. actually, i just manage to obtain the result using

 function [S] = sum1(n)
 S = 0; % Initialize sum to zero
 k = 0; % Initialize index to zero
 % loop for calculating summation
 while k <= 65119 
 S = S + cos(3.6*k*pi/180)*sin(3.6*k*pi/180); % add to summation
 k = k + 1; % increase the index
 end

and then square the outcome, and get the answer as urs.

cool, urs looks tidier. many thx