Course of Raku / Essentials / Creating and calling functions / Exercises

# The value of e

## Problem

Create a function that computes an approximate value of the mathematical constant *e* using the following formula:

This function should allow being called in one of the forms:

- The argument defines the number of items in the formula:
`e-approx(10)`

. - If no argument is passed, the sum contains 100 elements:
`e-approx()`

.

Print the results for both cases.

## Example

```
$ raku the-value-of-e.raku
2.7182818
2.718281828459045
```

## Solution

## Course navigation

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