Using a Calculator to Find Powers of e

Calculate $e^{3.14} .$ Round to five decimal places.

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution
On a calculator, press the button labeled $[e^{x}] .$ The window shows $[e^(] .$ Type $3.14$ and then close parenthesis, $[)] .$ Press [ENTER]. Rounding to $5$ decimal places, $e^{3.14} \approx 23.10387.$ Caution: Many scientific calculators have an “Exp” button, which is used to enter numbers in scientific notation. It is not used to find powers of $e .$

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Use a calculator to find $e^{- 0.5} .$ Round to five decimal places.

How did it go?