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Macaulay2 website
PruneComplex
::
isScalar
isScalar -- check whether a ring element is a scalar
Synopsis
Usage:
b = isScalar(f)
Inputs:
f
,
a
ring element
, a ring element
Outputs:
b
,
a
Boolean value
, true if f is a scalar, false otherwise.
Description
A synonym for liftable(f, coefficientRing ring f).
See also
isUnit
-- whether a ring element is a unit
UnitTest
-- Limit which units are to be pruned
liftable
-- whether lifting to another ring is possible
Ways to use
isScalar
:
"isScalar(RingElement)"
For the programmer
The object
isScalar
is
a
method function
.