make all functions generic over f32 and f64

[skewballfox]

Probably should hold off on this until we have some benchmarking code within rust. There are use cases where f32 would be preferred. If possible, we should make the functions generic over f32 and f64, preferably in a way that wouldn't require specifying types user-side. We can use num_traits for specifying the type. So far the type definition I have that works in the bit of code I tested it with is

where F: Float + NumOps + std::convert::From<f32>

the from<f32> is so that we can autoconvert primitives used in computation like 2.0_f32 as F which IMO isn't as ugly as F::from(2.0).unwrap()

potentially useful links:

• reddit - How to make a float generic function
• reddit thread - generic modules?

[skewballfox]

there's also a section from programming rust that deals with this, I'd definitely recommend checking it out if someone wants to tackle this before me