Bug in Sinc Interpolator

[0xcaff]

I believe I've found a bug in the Sinc interpolate. When calling interpolate with x = 0.0, NaN is returned. Is this intended?

[est31]

Sinc is defined by sin(x)/x. For x == 0 you have 0/0 which is obviously a problem and most likely the source of that. Usually people define the value of sinc to be 1 at that position, as it's the value that the function converges to at this location (from both directions).

[est31]

So yeah, I guess that's a bug.