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Incorrect shortcut key for algebraic evaluation.

You've listed a l as the key to evaluate an algebraic expression by temporarily setting a variable. However, this key doesn't appear to be bound in calc.

The s l key however is bound, to calc-let, which does exactly you want from a l. Further, s l isn't listed in the store/recall section.

Did you perhaps mean s l instead of a l?

Error: /invalidfont in /findfont

I got an error when tried to convert to pdf:

 $ ps2pdf -dNOSAFER calc-qref.ps                   master
Fontconfig error: "local.conf", line 222: invalid attribute 'name'
Fontconfig error: "local.conf", line 231: invalid attribute 'name'
Fontconfig error: "local.conf", line 240: invalid attribute 'name'
Fontconfig error: "local.conf", line 249: invalid attribute 'name'
Fontconfig error: "local.conf", line 222: invalid attribute 'name'
Fontconfig error: "local.conf", line 231: invalid attribute 'name'
Fontconfig error: "local.conf", line 240: invalid attribute 'name'
Fontconfig error: "local.conf", line 249: invalid attribute 'name'
Error: /invalidfont in /findfont
Operand stack:
   Typeface-for-Greek   --nostringval--   Symbol
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1900   1   3   %oparray_pop   1899   1   3   %oparray_pop   1883   1   3   %oparray_pop   1771   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   1852   3   3   %oparray_pop
Dictionary stack:
   --dict:1176/1684(ro)(G)--   --dict:0/20(G)--   --dict:175/200(L)--
Current allocation mode is local
Last OS error: No such file or directory
Current file position is 13851
GPL Ghostscript 9.10: Unrecoverable error, exit code 1
zsh: exit 1     ps2pdf -dNOSAFER calc-qref.ps

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