Are Exponentials ( e ^ x) Possible?

[DarkePacific]

I found a simplified equation for representing a bouncing motion on StackExchange.

y=(e^-x)*abs(4cos(5x))

My question is does anyone know if there is a way to represent the number "e" in WE or Jass without hardcoding its value? Haven't seen anything in the triggers that suggest it exists.



EDIT:
The solution in Jass (Thanks to MyPad), where

y = height
x = the distance from the starting point
bounces = the number of bounces
maxheight = the max value of y

y =( Pow(bj_E, (-1* x) ) )*RAbsBJ( maxheight * Cos( bounces * x))

EDIT 2:
Had to play around with the equation a bit in a calculator, but this gave me a really nice bouncing animation for anyone who needs, where 250 is the desired height of the bounced Special Effect.

 

[MyPad]

From what I recall, in JASS (vJASS), there is a native Pow function:

native Pow takes real a, real b returns real // returns a^b

You can use it in conjunction with the provided constant bj_E.

In Lua, all you have to do is just use the expression a^b.

 

[DarkePacific]

From what I recall, in JASS (vJASS), there is a native Pow function:

native Pow takes real a, real b returns real // returns a^b

You can use it in conjunction with the provided constant bj_E.

In Lua, all you have to do is just use the expression a^b.

Ooo nice never seen bj_E before, giving this a go.

 

[Pyrogasm]

As I recall, Pow in wc3 was a particularly inefficient function. It may be wise to avoid using it too frequently and instead use precomputed values (with or without interpolation) for the e^-x part.