Description

 • Single line comments are introduced by a pound character (#, sometimes called a hash, sharp, or number sign character). This character and all that follow it on a line comprise a comment, and are discarded by Maple.
 If the pound character is enclosed within a pair of left single quotes (a symbol), double quotes (a string), or a multi-line comment, then it is not treated as the beginning of a comment.
 If the final character of a comment line is a non-escaped backslash, the comment is continued on the next line.
 • Multi-line comments are enclosed in (* and *). Multi-line comments are not available in 2-D math.
 Multi-line comments may be nested, making the useful for temporarily commenting out blocks of Maple source code that may already contain single or multi-line comments.
 If (* appears within a single line comment, it does not begin a multi-line comment, just as # appearing in a multi-line comment does not begin a single line comment.
 • Maple procedures and modules may also contain a description clause, which is similar to a comment in that its purpose is documentation. However, unlike # comments, the description clause is retained by Maple when the procedure is compiled into Maple's internal form and will be displayed when the procedure is printed.

Examples

Note: When 1-D math input is converted to 2-D math input, all comments are discarded. To view all of the comments in the examples below, you must view the page in 1-D math input. In the View menu, ensure that the Display Examples with 2D Math box is not checked.

 > $x$
 ${x}$ (1)
 > p := proc(x) description "Descriptions are retained by Maple.";     # Square x.     x^2; # Comments are discarded by Maple. end proc;
 ${p}{:=}{\mathbf{proc}}\left({x}\right)\phantom{\rule[-0.0ex]{0.5em}{0.0ex}}{\mathbf{description}}\phantom{\rule[-0.0ex]{0.5em}{0.0ex}}{"Descriptions are retained by Maple."}{;}\phantom{\rule[-0.0ex]{0.5em}{0.0ex}}{x}{^}{2}\phantom{\rule[-0.0ex]{0.5em}{0.0ex}}{\mathbf{end proc}}$ (2)