2,please send an example on how to evaluate a series using loop- not getting loop- eg, 1^2 +2^2+ 3^2 . . . 100^2.
Yet another way to do any sum of squares like this is:
v = 1:100; result = v*v'
Which, like pathematica said, is the square of the norm of the vector v, or doing the dot product of v with itself. Again, this only works for sum-of-squares. But if you already have the terms of -any- series in a vector U (for example), you can just use sum(U) to sum up the elements of the vector.