[julia-users] Re: hypot question

[feza]

I don't think that's the reason, since:
``` 
if x == 0                                                                   
              
         r = y/one(x)   # Why not just return y?
```
This can only happen if  x = 0 or x = 0.0 and y = NaN      or      x = 0 or 
x = 0.0 and  y = 0 or y = 0.0

hypot(2,0)
2.0

hypot(0,2)
2.0

hypot(0,0)
0

hypot(0,0.0)
0.0



On Sunday, March 27, 2016 at 9:41:12 AM UTC-4, Andreas Noack wrote:
>
> It's to ensure that the return type doesn't depend on the value of x. If x 
> and y are integers then the return type of hypot1 will be Int if x==0 and 
> Float64 otherwise.
>
>