Unexpected allocations about intervalarithmetic.jl

[dpsanders]

sin still seems very slow and still allocates:

julia> x = interval(0, 1)
Interval(0.0, 1.0)

julia> @btime sin($x)
  854.841 ns (14 allocations: 448 bytes)
Interval(0.0, 0.8414709848078966)

[dpsanders]

Most of the time seems, unfortunately, to be being spent in doing
x / half_pi(Float64) for x::Float64. This calls convert(Interval, x), which is slow. :/

Perhaps we should add explicit methods for x / Y for float x and interval Y, which just wrap x into Interval(x).

[dpsanders]

Fixed by #114 and #117.

[lbenet]

Closing, since it is already fixed.