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Macaulay2 web site
Macaulay2Doc
::
isReal
isReal -- whether a number is real
Synopsis
Usage:
isReal x
Inputs:
x
,
a
number
Outputs:
a
Boolean value
, whether
x
is real
Description
i1 : isReal 2. o1 = true
i2 : isReal sqrt(-1) o2 = false
Ways to use
isReal
:
isReal(CC)
isReal(QQ)
isReal(RR)
isReal(ZZ)