Let's see, what is this?

He said nothing.

Have you decided which movie to watch?

In order to find the inverse function, you need to solve the original function's equation for x and y.

Trigonometric functions are one of the basic concepts in mathematics.

Please find the derivative of this function.

Understanding real variable functions is important for learning the basics of advanced mathematics.

In quantum mechanics, the state of a particle is described by a wavefunction.

This eigenfunction is one of the fundamental concepts of quantum mechanics.

This program makes extensive use of built-in functions.