Negative number raised to an even power returns a negative number

- math
- power

Mathematically, the number -2 raised to the power of 2 will return 4. However, in Python the following occurs

```
In [7]: -2**2
Out[7]: -4
```

Negative number raised to an even power returns a negative number

- math
- power

Mathematically, the number -2 raised to the power of 2 will return 4. However, in Python the following occurs

```
In [7]: -2**2
Out[7]: -4
```