problems with integration

[rprosperi]

(01-10-2015 10:30 AM)resolved Wrote:  sorry but I am new to all this jargon, but to help me avoid creating this kind of problem in the future, how do I know or how can I tell when I am working with a function versus an expression???? what I gather is "f" is a function but "f(x)" is an expression?? and how should they be used differently????

I'm so glad you asked this question; I thought I was the only one confused on these seemingly small (but effectively big) issues.

While CAS designers and math teachers seem to easily keep these things straight, the number of posts about this confusion suggests that many of us lowly calculator users appear to need help keeping track.

The conceptual difference is clear, but the pragmatic difference when writing and transposing equations seems far more subtle.