`isinf` and `isnan` doesn't work for `Num` type

[DaeSick]

issue

isinf

julia> infty = Num(Inf)
Inf

julia> isinf(infty)
false

julia> infty == Inf
true

julia> infty == Num(Inf)
true

isinf dosent' work but at least straight comparision by == is available.

isnan

julia> nana = Num(NaN)
NaN

julia> isnan(nana)
false

julia> nana == NaN
false

julia> nana == Num(NaN)
false

It's worse than Inf. I know that NaN == NaN returns false regardless Num, but I'm stuck in here because there is no alternative.

Enviroment

• julia v1.10
• Symbolics v5.28

[David P. Sanders]

You can use Symbolics.value(x) to extract the value inside the Num.

[Christopher Rackauckas]

We could overload these two functions though.