baseName -- the base name of a generator

Description

baseName x -- returns the variable or symbol upon which an indexed variable table or a generator of a monoid or polynomial ring is based.

i1 : R = QQ[x_1 .. x_4,y]

o1 = R

o1 : PolynomialRing

i2 : y

o2 = y

o2 : R

i3 : baseName y

o3 = y

o3 : Symbol

i4 : x_1

o4 = x
      1

o4 : R

i5 : baseName x_1

o5 = x
      1

o5 : IndexedVariable

i6 : x

o6 = x

o6 : IndexedVariableTable

i7 : baseName x

o7 = x

o7 : Symbol