[FEATURE REQUEST] <Feat: Enhance the pow methods in the Math library>

### What would you like to Propose?

I want to enhance the pow method in math, which currently only supports integer types, not double type data.

### Issue details

Input  number: x = 2.00000, n = 10
output: 1024.00000

Input  number: x = 2.10000, n = 3
output：9.26100


### Additional Information

No respose.