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(The following is believed correct. Please report any errors or differing experiences.)

 There's times and places where I needed a sneaky way to draw a common power
supply "pulse" waveform. Doing so has led to finding a curious bug on older PostScript
interpreters.

I found the code...

sin abs 32.5 exp

done over 0 to 180 degrees nicely draws me a clean narrow pulse. But strangely,
the code sailed right on through Distiller but blew up on a HP LaserJet 4M+ with an
undefined result error.

The apparent problem has to do with differences in algorithm implementation on 16 and
32 bit machines. And, yes, raising a small number to such a high power is normally and
unreasonably well out of the mainstream.

At any rate, the following patch seems to work...

sin abs      dup 0.001 lt {pop 0.001} if       32.5 exp

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