
:Command list

:directive,number of<br/>parameters,description,optional parameters,recognized option word
:title
1
defines the title of the exercise
:language
1
defines the language of the exercise, such as <span class="tt wims_code_words">en</span> or <span class="tt wims_code_words">fr</span>
:author
1
defines the author of the exercise. Write it in the form <span class="tt wims_code_words">firstname, lastname</span> (in case of multiple authors, use a semicolon between them).
:email
1
defines the author's email (in case of multiple authors, use a comma between the addresses).
:format
1
format of the statement


help=format
:css 
1 
defines css style
:precision
1
precision in comparing user's reply with the solution. Give a positive integer n here: the comparison will be done to the precision of 1/n.
:range
1
variable range when evaluating a function supplied by the user. Should be given in the form <span class="tt wims_code_words">n1..n2</span>, where n1 is the start point, n2 is the end point.

:statement
1
the parameter is the statement of the exercise. Can be used only one time in the exercise. 

:answer
2-5
defines a freestyle answer. The first parameter is the prompt of the answer, and the second is the good answer.  Such an answer can be tested according to many different types: number, function, text, etc. 
type option weight

help=reply
:choice
3-5
defines a multiple choice. The first parameter is the prompt of the choice, the second the good choice(s), and the third the other choice(s). The last two parameters may (should) be a comma-separated list. Multiple good choices are allowed. If a choice appears in both good and bad choice lists, it will be taken as good.
option weight
shuffle noidontknow
:condition
2-4
defines a special condition for the evaluation of freestyle answers.
option weight

help=reply
:solution
1
gives the solution of the exercise with explanation. The OEF manager may decide on whether to show this explained solution to the user, according to the user setup of the difficulty level. Can be used only one time in the exercise. 
:hint
1
gives a hint of the exercise. The OEF manager may decide on whether to show the hint, according to the user setup of the difficulty level. Can be used only one time in the exercise. 
:help
1
gives a help to the exercise. This help will always be accessible to the user, in a popup window. Can be used only one time in the exercise. 
:feedback
2
gives a feedback warning to the user when the answer meeds a specified condition. Usually to warn of a typical error.


help=feedback
:steps
1
define the questions of each step of the exercise ; must be before the instruction <span class="tt wims_code_words">statement</span> (see the variable <span class="tt wims_code_words">\step</span>). Can be used only one time in the exercise. 


:nextstep
1
define the questions of each step of the exercise in a dynamic way ; must be before the instruction <span class="tt wims_code_words">statement</span> (see the variable <span class="tt wims_code_words">\step</span>). Can be used only one time in the exercise. 


:conditions
1
define the numbers of the conditions useful for the exercise.

:latex
1
permet d'écrire une version en latex de l'exercice utilisant les variables définies dans l'exercice et pouvant être téléchargées dans la version imprimable de l'exercice (accessible uniquement par les développeurs ou les enseignants d'une classe). Il est conseillé de mettre l'énoncé dans un environnement latex prédéfini <span class="tt wims_code_words">\begin{statement} \end{statement}</span> et la solution dans l'environnement  <span class="tt wims_code_words">\begin{sol} ... \end{sol}</span>.

:credits
1
allow  to insert credits at the end of the exercise (variables are evaluated).