Runtime evaluation/In an environment: Difference between revisions

(add E example)
(→‎{{header|Octave}}: ++ metafont)
Line 77:
; ok
</lang>
 
=={{header|Metafont}}==
<lang metafont>string p;
p := "2x + 1";
x := 5;
a := scantokens p;
message decimal a; % 11
x := 2;
b := scantokens p;
message decimal b; % 5</lang>
 
=={{header|Octave}}==