Merge pull request #268 from JuliaSymbolics/myb/isequal

Use `==` for numerical equality

Author: YingboMa

Project.toml

@@ -1,7 +1,7 @@
 name = "SymbolicUtils"
 uuid = "d1185830-fcd6-423d-90d6-eec64667417b"
 authors = ["Shashi Gowda"]
-version = "0.10.2"
+version = "0.10.3"
 
 [deps]
 AbstractAlgebra = "c3fe647b-3220-5bb0-a1ea-a7954cac585d"

src/types.jl

@@ -602,7 +602,7 @@ function arguments(a::Add)
     a.sorted_args_cache[] = iszero(a.coeff) ? args : vcat(a.coeff, args)
 end
 
-Base.isequal(a::Add, b::Add) = isequal(a.coeff, b.coeff) && isequal(a.dict, b.dict)
+Base.isequal(a::Add, b::Add) = a.coeff == b.coeff && isequal(a.dict, b.dict)
 
 Base.show(io::IO, a::Add) = show_term(io, a)
 
@@ -745,7 +745,7 @@ function arguments(a::Mul)
     a.sorted_args_cache[] = isone(a.coeff) ? args : vcat(a.coeff, args)
 end
 
-Base.isequal(a::Mul, b::Mul) = isequal(a.coeff, b.coeff) && isequal(a.dict, b.dict)
+Base.isequal(a::Mul, b::Mul) = a.coeff == b.coeff && isequal(a.dict, b.dict)
 
 Base.show(io::IO, a::Mul) = show_term(io, a)
 

test/basics.jl

@@ -197,3 +197,8 @@ end
         @test isequal(x^1, x)
     end
 end
+
+@testset "isequal" begin
+    @syms a b c
+    @test isequal(a + b, a + b + 0.01 - 0.01)
+end