Fix Ints format produced by integrate
Fix Ints format produced by integrate

The format of Ints is Ints(algebraic, name, range, list(name=range))

For example, Ints(..., x, -infinity..infinity, [j=1..i,i=1..100])
denotes a 5050-dimensional integral over an array-of-arrays-of-reals x
(so for example idx(idx(x,i),j) is a real whenever 1<=j<=i<=100).

In particular, Ints(body,x,range,[]) is equivalent to Int(body,x=range).

This breaks "improve" and "fromLO" temporarily. It's worth it.

zachsully/hakaru,zachsully/hakaru,zaxtax/hakaru,zaxtax/hakaru