[OS X TeX] xy-pic question

[Ross Moore]

> hallo,
> 
> a few days ago, this list told me to use xy-pic for diagrams. I am now 
> learning to use it and start getting what I want and also to like it.
> 
> Question:
> Is it possible to draw curves of a specific functional form, e.g. y=k^b 
> A^{1-a} (A Cobb-Douglas production function in intensive form....).

No. It's not designed to do this, kind of thing.
Though if you had the coordinates constructed externally
for a set of points then its not hard to program Xypic to connect them
with line segments.

> Or is it alternatively possible to force a curve passing positions / 
> coordinates I specify? (Control points are always outside the curve.)

There is an interpolating spline construction which can do this.
It's called a q-Bezier curve, or q-spline, I think.
In Xy-pic, look for \qspline in the  xycurve  module.

 
> Thanks for any answer.

Hope this helps,

	Ross Moore

 
> daniel
> 
> 
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Mac TeX info, resources, and news can be found at:
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