Am 23.04.2012 16:09, schrieb Stephen:
> On 23/04/2012 11:39 AM, Bill Pragnell wrote:
>>> Ah! The exponential, just what I was looking for.
>>> > It is true that if you don't use it, you lose it.
>> Too true. I use it a little too much to be honest:)
>>
>>
>>
> In that case you could use your mathematical brain ;-) to tell me how to
> translate the function below along the z axis. I used the formula that
> you suggestion to create a ripple but for the life of me I cannot move
> it from the origin. After reading the doc I substituted z-2 for z and
> that did not work properly. I am at a loss.
>

> *exp(-0.5*z*z) )) }

Should have worked, maybe you missed a z somewhere.

The more robust approach is to leave your function as-is, and call it 
from another function such as:

function { foo(x,y,z-2) }

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