I needed to make symbolic vector, as in
The problem is that, the proc called, has to create this vector on the fly, since the dimension changes on each call. So I used seq command to generate it. But seq did not work. I tried
After looking more at it, It seems to have nothing to do with evaluation. If the subscript index is variable, it does not work.
One way is to use v[i] instead of v__i, and now it works:
But since subscripted variable are supposed to be safer than indexed variable, I wanted to use v__i and not v[i].
Why it does not work? And is there a workaround this?
ps. I could always do this
But this seems like a hack to me and I do not know why it should be needed.
ps. any one knows where help on "__" is in Maple? I can't find it. doing ?__ turns out nothing. I do not know under what name help on double subscript is in maple.