4Suite
™
API Documentation
►
Module
Ft
.
Lib
.number
Functions:
finite
,
isinf
,
isnan
Globals:
inf
,
nan
Functions
finite
(
number
)
finite(number) -> non-zero if neither infinite or not-a-number
isinf
(
number
)
isinf(number) -> -1 if negative infinity, 1 if positive infinity, 0 otherwise
isnan
(
number
)
isnan(number) -> non-zero if not-a-number
Globals
inf
= inf
nan
= nan