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Dear Alan, Am Mittwoch, den 12.10.2011, 07:36 +0200 schrieb Alan Braslau:
Metapost can now perform calculations in double precision floating point. At this time, it is in the svn version and does not work yet as such integrated in ConTeXt (through mplib). Taco promises this for soon...
great to hear that. Just to clarify, with »now« you mean MetaPost v2, do not you? Taco, I hope you get there without a lot of problems showing up. If you need testers a good option would be to integrate that into ConTeXt Standalone as an option.
The graph package is pretty clever, and I am working on proposals on how to extend/rewrite this taking advantage of the new metapost handling of large and small numbers.
Perfect!
To plot a function, you can create a path, as in path p ; p := for i=0 upto 1000: hide (x := i/1000 ;) if (i>0) -- fi (x,exp(x)) endfor ; gplot p ;
What module do I need for `gplot`? Looking at the MetaFun manual [8] I found out MetaFun even provides a macro `function` which probably does exactly what you do above with the for loop. draw function(2,"x","x**(-0.5)",1,10,1) xyscaled (2cm,2cm) withpen pencircle scaled 5mm withcolor transparent(1,.5,yellow) ;
One proposal will be to make this even easier with new macros.
Another perfect! One thing coming to my mind though that hopefully the wheel is not reimplemented. I guess Gnuplot can do a lot already, but on the other probably not as neat as Metapost when we want to color certain areas. Thanks, Paul [8] http://www.pragma-ade.com/general/manuals/metafun-s.pdf