I've generally used the sinesum message to create a simple sinewave array without issues. usually I just make an internal message like [; array1 sinesum 2051 1(

however I get unexpected behavior when I try to make a smaller array. for example if I say [; array1 sinesum 511 1( then my array will get resized to 259 instead of the expected 511. similarly with [; array1 sinesum 255 1( my array will be resized to 131.

have I been misunderstanding how sinesum works? or is there some basic math going on here that I just don't grasp?

@yannseznec
Yes 2048 will work but 2045 will reduce to the next lower size that is possible........ 1026 (1024+2 for optimal use with interpolation).
I think sinesum is made to work that way because some objects like [tabosc4~] require a power of 2 + 3 points for wraparound to work efficiently with interpolation.
It could do what you ask but then when you use your array you would run into problems.... so it doesn't.
David.

oh ok, I got it. pretty confusing to see a different number in that size field! thanks.