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Macaulay2 website
ExactCouples
::
isEvenDegree
isEvenDegree -- for a couple ring Q, Q.isEvenDegree returns true on page-degrees of Q
Caveat
this value must be installed by hand or by expectCoupleRing(Q)
See also
expectCoupleRing
-- accepts certain rings of the form R[e_r,f_r], and installs Page, isEvenDegree, and isOddDegree
For the programmer
The object
isEvenDegree
is
a
symbol
.