My calc anki cards have copyrighted material in them so not off hand no.
But generally what I would do is use them to memorize anything I needed to know while I was solving a problem but couldn't remember.
The important thing is to know how to write mathematical expressions in LaTeX syntax, because this lets you make non-crap cards. You might do something like:
\frac{d}{dx} \cos x = ?
On the front and then
- \sin x
On the back.
The important point is that between the front and the back you actively recall the information you're trying to remember. Undergrad mathematics can be thought of as a context free grammar with a set of production rules, memorizing those production rules is a major pain in the ass and this helps.
(Maybe other people don't have trouble with this, I nearly failed every math class in high school and am decidedly not a math prodigy. Your mileage may vary.)
Avoid cards where it takes a long time to state the back side of the card. Even if you know the answers, you'll get bogged down and it'll take too long to review. Answers should be short and easy.
Better to create 5 cards where you replace 5 parts of a formula with blanks and say "fill in the blanks", than one card that requires remembering 5 things.
