Purplemath
Dr. Math
I thought both of these were pretty good.
I have others, but there are specific, i.e. logs, etc.
You can always post a question here or in Tilted Knowledge (Knowledge is probably better)
__________________
Before you criticize someone, you need to walk a mile in their shoes. That way, if they get angry at you.......you're a mile away.......and they're barefoot.
|