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home
books
gallery
models
mathshop
mathgifs
podcast
art shows
lessons
dan's lessons
arithmetic
prealgebra
beginning algebra
geometry
intermediate algebra
trigonometry
precalculus
differential calculus
integral calculus
multivariable calculus
linear algebra
statistics
differential equations
number theory
patty's calculus
featured
prime numbers
mathematica
twitter feed
more math gifs
about dan
dan's blog
problems
problems 1-10
problems 11-20
problems 21-30
problems 31-40
answers
answers 1-10
answers 11-20
answers 21-30
patty's calc vids
