Equality between bases (#24)

JuliaAlgebra · May 9, 2024 · d35bba2 · d35bba2
1 parent e437e29
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diff --git a/src/interface.jl b/src/interface.jl
@@ -10,6 +10,9 @@ Society for Industrial and Applied Mathematics, **2012**.
 abstract type AbstractPolynomialBasis end
 
 generators(basis::AbstractPolynomialBasis) = basis.polynomials
+function Base.:(==)(a::AbstractPolynomialBasis, b::AbstractPolynomialBasis)
+    return generators(a) == generators(b)
+end
 
 function Base.copy(basis::AbstractPolynomialBasis)
     return typeof(basis)(copy(generators(basis)))

diff --git a/test/monomial.jl b/test/monomial.jl
@@ -5,6 +5,8 @@ using DynamicPolynomials
 
 @testset "Linear" begin
     basis = MonomialBasis([x, y])
+    @test basis == MonomialBasis([y, x])
+    @test basis != MonomialBasis([y, y^2, x])
     @test polynomial_type(basis, Int) == polynomial_type(x, Int)
     @test polynomial(i -> i^2, basis) == 4x + y
     @test coefficients(x + 4y, MonomialBasis) == [4, 1]