"Expected, or returns" compile error

[pOke]

Well I got this function off http://www.hiveworkshop.com/forums/miscellaneous-tutorials-456/about-movement-172309/

library ParabolicMovement

function GetParabolaZ takes real x, real d, real h, returns real
     return 4 * h * x (d -x) / (d * d)
endfunction

endlibrary

But for some reason its throwing me an error, and I'm sure its cause of my very limited knowledge of Jass, but maybe someone could tell me what I need to fix.

 

[Doomlord]

You have an extra comma next to real h.

It should be "takes real x, real d, real h returns real"

 

[pOke]

Hm, I changed it, and now it says

"Undeclared function x,"
"Bad types for binary operator"

These are on the return line.

o.o

 

[deathismyfriend]

Change 4 to 4.0 or 4.

 

[pOke]

Change 4 to 4.0 or 4.

No effect

 

[Xonok]

No effect

x (d -x)
this is treated as a function. Use * signs to fix it.

 

[deathismyfriend]

Ooo wow how did we all miss that.

 

[Ceday]

This shows that no one used that tutorial until now.

 

[pOke]

Okay! Changing the sign did the trick.


EDIT: All Solved Thanks.