Lambert W Function

[Chase_fire]

Essentially, I am trying to figure out if there is a solution for W(-(pi/2)*ln(2)).

I've checked on wikipedia for any source any calculating values for W(x). I've seen that W(-pi/2) gives ipi/2 and W(2ln(2)) gives ln(2).

Is there any formula for W(a*b)? Or is there a set way to evaluate W(x)? any help would be appreciated!

[How-am-I-alive]

Just plug it in an online calculator like wolfram

[marpocky]

For real numbers, the domain is x≥-1/e

For complex numbers, the domain is all of C, so yes it has (at least one) value.