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/osnet-11/usr/src/cmd/perl/5.8.4/distrib/lib/Math/
H A DBigInt.pm1300 sub is_nan subroutine
1428 if (($x->is_nan() || $y->is_nan()) ||
2591 $x->is_nan(); # if $x is NaN
2742 C<is_nan()>) return true or false, while others (C<bcmp()>, C<bacmp()>)
2947 =head2 is_one()/is_zero()/is_nan()/is_inf()
2951 $x->is_nan(); # true if arg is NaN

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