You can use this card to edit and write your own functions. It may be helpful for forming those oddball functions which just don't fit into any particular category. You can use the
"Graph Equation" button when your finished.
If you'd like to read more, click this button -->
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Your Very Own Edit Box
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Your custom function can be any general function or may be a combination of other functions.
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This function editor was provided to help you write functions that have not been provided for in this stack. In order to write your own functions you will have to be somewhat familiar with the HyperTalk language.
You can get some idea of the syntax by looking at the equations in the other function editor sections. Another place to look is in the Help Stacks provided by Apple. Go to the HyperTalk section and browse through the sections on mathematical functions.
Another place to look is Apple's book, HyperCard© Script Language Guide: The HyperTalk™ Language.
If you just want to combine functions then you can always cut and paste material from one Editing box to another. You can get some very interesting functions in this manner.
You might want to try some of these:
f (x) = exp(-x) * sin(x)
f (x) = sin(x) + cos(x)
f (x) = 1 - exp(-x)
f (x) = 2 * (trunc(round(sin(x))))
f (x) = exp(sin(x))
f (x) = trunc(x)
f (x) = abs(sin(x))
f (x) = -abs(cos(x))
f (x) = x + cos(x)
The idea is for you to experiment!
As usual you can click anywhere to dismiss this help section.