As nouns the difference between precalculus and precalc
is that precalculus is a class in school taken before calculus to help students prepare for calculus while precalc is (informal) precalculus.
precalculus
English
Noun
(-)
A class in school taken before calculus to help students prepare for calculus.
precalc
English
Noun
(-)
(informal) precalculus