add number_of_generators for UniversalPolyRing (#1795)

Nemocas · Sep 20, 2024 · fd3af98 · fd3af98
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diff --git a/docs/src/univpolynomial.md b/docs/src/univpolynomial.md
@@ -73,8 +73,14 @@ Universal Polynomial Ring over Integers
 julia> x = gen(S, "x")
 x
 
+julia> number_of_generators(S)
+1
+
 julia> y, z = gens(S, ["y", "z"])
 (y, z)
+
+julia> number_of_generators(S)
+3
 ```
 
 ## Universal polynomial functionality

diff --git a/src/generic/UnivPoly.jl b/src/generic/UnivPoly.jl
@@ -36,6 +36,8 @@ end
 
 number_of_variables(S::UniversalPolyRing) = length(S.S)
 
+number_of_generators(S::UniversalPolyRing) = length(S.S)
+
 symbols(S::UniversalPolyRing) = S.S
 
 function vars(p::UnivPoly{T}) where {T}