If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Unit 1: Thinking about multivariable functions

About this unit

The only thing separating multivariable calculus from ordinary calculus is this newfangled word "multivariable". It means we'll deal with functions whose inputs or outputs live in two or more dimensions. Here, we lay the foundations for thinking about and visualizing multivariable functions.