Manußl PHP
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Dal╣φ
is_nan
(PHP 4 >= 4.2.0)
is_nan --
Description
bool
is_nan
( float val)
Returns
TRUE
if
val
is 'not a number', like the result of
acos(1.01)
.
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Dom∙
Dal╣φ
is_infinite
Nahoru
lcg_value
