The altimeter on my airplane broke.

Please use the emergency stairs in case of a fire.

Due to the earthquake, the city declared a state of emergency.

This program has become executable.

The possibility of that plan succeeding is high.

He can write sentences using potential verbs.

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.