blob: b7ded659d528963290d2e5227524f287ad13d2e2 (
plain)
1
2
3
4
5
6
7
8
9
10
|
- No checks are made for intermediate over- or underflows, which may occur
in the middle of the algorithms although the final result may be
representable.
For instance, if in the computation of Im (cos(x+i*y)) = -sin(x)*sinh(y)
an overflow occurs in sinh(y), the value sign(Im (cos(x+i*y))) * inf
is returned, even if sin(x) is sufficiently close to 0 such that
sin(x)*sinh(y) is representable. If furthermore an underflow occurred
in sin(x) (which has not been observed in practice), then the return
value would be NaN*(+-inf)=NaN.
|
