Open System Services Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

sin(3) OSS Library Calls Reference Manual
For IEEE floating-point data, when the value of x is infinite, NaN is returned instead of
0.0 (zero).
For IEEE floating-point data, errno is not set to [EDOM] when the value of x is NaN.
errno is not set to [ERANGE] when underflow occurs.
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