To fix the inaccuracies and allow handling of negative exponents and bases, the key issue lies in how negative numbers are handled in the power calculation, especially when dividing.
## Example Output:
```python
>>> power(4, 6)
4096
>>> power(2, 3)
8
>>> power(-2, 3)
-8
>>> power(2, -3)
0.125
>>> power(-2, -3)
-0.125
```
* Added Strassen divide and conquer algorithm to multiply matrices
* Divide and conquer algorith to calculate pow(a,b) or a raised to the power of b
* Putting docstring inside the function.
* Added doctests
