Hi everyone,
I'm trying to create a sinewave, size 32, through a message box with this content:

; array1 sinesum 32 1.

But when I check the array properties, the value of size is 35.
And if I try to make an array made of 64 indexes, the properties value for the size is 67.

It has something to do with the setting of x-range in the array properties?

does it really do that? huh never noticed, but its convenient. The 4 point interpolation objects need those extra points as padding. If you really don't want them then I'd read an iterator through expr to tabwrite.

it has to do with the sinesum message, the array automatically creates an array for cyclic 4-point interpolation (e.g. tabosc4~), in which you need extra points, and they need to have the same value at the beginning and end. see the tabosc4~ help file for an explanation

Thank you guys for the answers. I've checked in the Help of tabosc4~ and in fact the three extra points in the size field of the array properties are perfectly normal.