Description
local s provides the local symbol
s, creating a new symbol if necessary. The initial value of a local symbol is
null.
i1 : f = () -> ZZ[local t]
o1 = f
o1 : FunctionClosure
|
i2 : f()
o2 = ZZ[t]
o2 : PolynomialRing
|
i3 : t
o3 = t
o3 : Symbol
|