I feel "uncomfortable" with the existing constants below (which are already defined in PSTricks)

Euler = 2.718281828
Pi = 3.141592654

because I think using e and π is much more natural.

My question is : How can I use unicode characters as identifiers in PostScript? Is it impossible?


    /e {2.718281828} def 
    /π {3.141592654} def 



I think the answer is no, you can't do this. According to page 25 of the Postscript Language Reference Manual

There are three encodings for the PostScript language: ASCII, binary token, and binary object sequence.

  • Sorry, Is π (ALT+227) ASCII? – kiss my armpit Jul 14 '14 at 19:53
  • @Pleasedon'ttouch --- I don't think so. – Ian Thompson Jul 14 '14 at 19:59
  • 1
    @Pleasedon'ttouch Alt 247 is presumably some input convention in your system but pi is unicode U+03C0 (decimal 960) which isn't in the 0-127 ASCII range. – David Carlisle Jul 14 '14 at 20:18

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