1CISNAN(1) LAPACK auxiliary routine (version 3.1) CISNAN(1)
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NAME
6CISNAN - .TRUE
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SYNOPSIS
9FUNCTION CISNAN( CIN )
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LOGICAL CISNAN
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COMPLEX CIN
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PURPOSE
16SISNAN returns .TRUE. if its argument is NaN, and .FALSE. otherwise.
17To be replaced by the Fortran 2003 intrinsic in the future.
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ARGUMENTS
21CIN (input) COMPLEX
22Input to test for NaN.
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LAPACK auxiliary routine (versionOc3t.o1b)er 2006 CISNAN(1)