Editing For loop (section)

===1980: Maple===
{{Further|Maple (software)}}
Maple has two forms of for-loop, one for iterating over a range of values, and the other for iterating over the contents of a container. The value range form is as follows:

 '''for''' ''i'' '''from''' ''f'' '''by''' ''b'' '''to''' ''t'' '''while''' ''w'' '''do'''
     ''# loop body''
 '''od''';

All parts except <code>'''do'''</code> and <code>'''od'''</code> are optional. The <code>''' for''' ''I''</code> part, if present, must come first. The remaining parts (<code>'''from''' ''f''</code>, <code>'''by''' ''b''</code>, <code>'''to''' ''t''</code>, <code>'''while''' ''w''</code>) can appear in any order.

Iterating over a container is done using this form of loop:

 '''for''' ''e'' '''in''' ''c'' '''while''' ''w'' '''do'''
     ''# loop body''
 '''od''';

The <code>''' in''' ''c''</code> clause specifies the container, which may be a list, set, sum, product, unevaluated function, array, or object implementing an iterator.

A for-loop may be terminated by <code>'''od'''</code>, <code>'''end'''</code>, or <code>'''end do'''</code>.