Some functions accept optional arguments. Each of these optional arguments
has a name. For example, one of the optional arguments for gb
is named DegreeLimit; it can be used to specify that the computation
should stop after a certain degree has been reached. Values for optional
arguments are specified by providing additional arguments of the form B=>v
where B is the name of the optional argument, and v is
the value provided for it.
i1 : R = ZZ/101[x,y,z,w];
i2 : gb ideal(x*y-z^2,y^2-w^2)
o2 = {0} | y2-w2 xy-z2 yz2-xw2 z4-x2w2 |
o2 : GroebnerBasis
i3 : gb(ideal(x*y-z^2,y^2-w^2),DegreeLimit => 2)
o3 = {0} | y2-w2 xy-z2 |
o3 : GroebnerBasis
The names and default values of the optional arguments for a function can
be obtained with options, as follows.
