Reset integrating a function

[Snorre]

Hello Salvo,

I could reproduce the crash for g(x):=x² and int(g,x).
This also happens for int(g) or f(t):=t² and int(f,t), whereas int('sin') or int(f) or h(x):=c and int(h) are mostly fine (somewhat strange results nevertheless).

Since I don't know if a functional form of "int" makes sense anyway (how should it behave for functions with two or more parameters?) -- as opposed to "diff" --, you should use only expressions as arguments (see on-calc help) as Tim suggested.