Re: [Algorithms] Converting floats to a specific range

[Simon F. <sim...@po...>]

Zafar Qamar wrote:
> Hi,
> 
> I'm sure this problem is pretty simple, but here goes...
> 
> I have a set of float numbers that I'm trying to auto-wrap within a
> specific range of 0.0 to wrapSize (wrapSize is positive, and not a
> power of 2)  
> 
> 
> Can anyone think of a bit of maths for this please? Note that it
> needs to work for any positive value of wrapSize (not just 1.0) 
> 
> Cheers
> Zafar

Do you mean like multiplying by the reciprocal of your range, taking
frac, and scaling back up again? 

Simon

PS: I hope you don't need this to be accurate for huge values (e.g. in
range reducing operations for, say sin(maxfloat))