Hyperbolic functions in gml

[Misty]

Basically, im trying to make a smooth ramp shape from a function.

Tanh is the normal way to do it but it ain't there.

Either I need a way to use tanh, (hyperbolic tangent) or else can someone please give me an equation that will produce a similar shape to the following equation
Y=-tanh(sqrt(x*pi)-pi)^2+1

 

[Jordan Robinson]

Since you are working with reasonably advanced formulas, I am guessing you're quite good at math so I can point you in the direction of this:

tanh(x) = sinh(x) / cosh(x) = (e^x - e^-x) / (e^x + e^-x)

For using Euler's number (e), check out this.

Hopefully from that, you will be able to work it out. If not, let me know.

 

[Misty]

Thanks, that's exactly what I wanted. I am going to test this and see if it works using a blank game (I always use a blank game to test new things.)

Function appears to work. (I used power the "^" operator appears to not do as intended.)

 

[faissaloo]

Thanks, that's exactly what I wanted. I am going to test this and see if it works using a blank game (I always use a blank game to test new things.)

Function appears to work. (I used power the "^" operator appears to not do as intended.)

The ^ operator is a bitwise xor: https://en.wikipedia.org/wiki/Bitwise_operation#XOR

 

[Jordan Robinson]

The function you want for Euler's number is exp(x)

 

[Misty]

I just used, e=2.71828; power(e,x);, worked just as good.