3 ms·
Starting with derivatives and integrals was exactly what I was thinking about. What surprises me is the pricing: I was thinking about something lower. Thank yo
by DeusExMachina 16y ago
Starting with derivatives and integrals was exactly what I was thinking about. What surprises me is the pricing: I was thinking about something lower.
Thank you for the feedback.
- paulgb 16y agoWell, I was probably an unusual case. Very interested in math, very bad at learning from teachers, and earning a bit of disposable income. I ended up spending about $50 one term on math learning software that turned out to be total crap, so spending that on something that worked wouldn't have been out of the question.