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func main()
n := Float64(1.5)
assert n == Float64(1.5)
assert n + n == Float64(3.)
assert n * 2 == Float64(3.)
assert n - n == Float64(0.)
assert Float64.PI == Float64(3.141592653589793)
assert Float64.PI.with_precision(Float64(0.01)) == Float64(3.14)
assert Float64.INF == Float64.INF
assert Float64.INF.isinf()
none_num : Float64? = none
assert none_num == none
assert none_num == none_num
assert (none_num < none_num) == no
assert (none_num > none_num) == no
assert (none_num != none_num) == no
assert (none_num <> none_num) == Int32(0)
assert (none_num == Float64(0.0)) == no
assert none_num < Float64(0.0)
assert (none_num > Float64(0.0)) == no
assert none_num != Float64(0.0)
assert (none_num <> Float64(0.0)) == Int32(-1)
# >> nan + 1
# = none
>> Float64(0.)/Float64(0.)
# >> Float64(0.)/Float64(0.)
# = none
assert Float64.PI.cos()!.near(Float64(-1))
assert Float64.PI.sin()!.near(Float64(0))
assert Float64.INF.near(-Float64.INF) == no
assert Float32.sqrt(16) == Float32(4)
assert Float32.sqrt(-1) == none
assert (Float64(0.25)).mix(10, 20) == Float64(12.5)
assert (Float64(2.0)).mix(10, 20) == Float64(30.)
assert Float64(5) == Float64(5.)
assert (Float64(0.5)).percent() == "50%"
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