f ∘ g
g ⨟ f
compose(f, g)
opcompose(g, f)
Composition of morphisms. ∘
is the operator defined in Base
.
CompositionsBase.jl defines the opposite composition operator ⨟
as
⨟(fs...) = ∘(reverse(fs)...)
and also the ASCII aliases compose
and opcompose
.
As ⨟
, compose
, and opcompose
are all defined in terms of ∘
,
single-argument call is the identity function.
julia> using CompositionsBase
julia> tuple ∘ inv === compose(tuple, inv) === inv ⨟ tuple === opcompose(inv, tuple)
true
julia> ∘(tuple) === compose(tuple) === ⨟(tuple) === opcompose(tuple) === tuple
true