Plot derivative of a function

[cyrille de brébisson]

Hello,

Quote:just one token point for something which is wrong? … You are really generous!

Problem is, it is not wrong!
What you have is 2 variables, with the same name but a different scope.
This is not a problem in computer sciences where such a construct
{
int i=0;
{
int i=1;
}
}
happends often, and where we know what to look for (but still causes bugs every once in a while)...

In math, the ground is much murkier as math is WAY less formal than most people think...

regardless, int(f(x),x,0,x) is not 'wrong', it is just VERY confusing to someone who is not paying attention/used to such concepts...

Cyrille