(maxima.info)Comments

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13.1 Comments
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A comment in Maxima input is any text between '/*' and '*/'.

   The Maxima parser treats a comment as whitespace for the purpose of
finding tokens in the input stream; a token always ends at a comment.
An input such as 'a/* foo */b' contains two tokens, 'a' and 'b', and not
a single token 'ab'.  Comments are otherwise ignored by Maxima; neither
the content nor the location of comments is stored in parsed input
expressions.

   Comments can be nested to arbitrary depth.  The '/*' and '*/'
delimiters form matching pairs.  There must be the same number of '/*'
as there are '*/'.

   Examples:

     (%i1) /* aa is a variable of interest */  aa : 1234;
     (%o1)                         1234
     (%i2) /* Value of bb depends on aa */  bb : aa^2;
     (%o2)                        1522756
     (%i3) /* User-defined infix operator */  infix ("b");
     (%o3)                           b
     (%i4) /* Parses same as a b c, not abc */  a/* foo */b/* bar */c;
     (%o4)                         a b c
     (%i5) /* Comments /* can be nested /* to any depth */ */ */  1 + xyz;
     (%o5)                        xyz + 1