The reaction manager is an extremely cumbersome way to map one parameter to another, especially if you want a precisely defined mapping curve.

In Cinema4D (a program I’m learning at the moment) there is a range mapper node that can use a spline as mapping curve to map an input parameter to an output parameter.

Is there a way in Max to map one parameter to another using a precisely defined curve?

3D Studio DOS to 3ds Max 2010
Windows XP 64
NVidia Quadro FX 3700
Dual Quad Xeon, 6Gb Ram

There is Parameter Wiring, it’s a but simpler to use than reaction manager. I don’t think it will do curves, but you can add mathematical operators to the values.
Other than that you may have to go into scripting.

No other options?

I guess what i really need is Cinema 4D.

3D Studio DOS to 3ds Max 2010
Windows XP 64
NVidia Quadro FX 3700
Dual Quad Xeon, 6Gb Ram

Why can’t you just make a curve in the reaction manager using your list of input vs. output values?

3ds Max 2009 SP1, 2010 SP1
Maya 2012
Windows 7 Professional 64-bit
Dual Intel Xeon E5520, 6 GB Ram
NVIDIA GeForce GTX 460 OC