public static float Sign(float Value)
{
if (Value == 0) return 0f;
var IValue = MathFloat.ReinterpretFloatAsUInt(Value);
return ((IValue & 0x80000000) != 0) ? -1f : +1f;
//if (float.IsNaN(Value)) return +1f;
//if (float.IsNaN(-Value)) return -1f;
//if (Value > 0) return +1.0f;
//if (Value < 0) return -1.0f;
//return 0.0f;
}