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<h3>The format OEF</h3>
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<p>
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OEF means ``online exercise format'', a format for mathematical exercises
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destinated to computer-aided teaching systems. The goal of the creation
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of this format is to help the exchanges of content between different
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systems. Therefore this format only contains mathematical informations of
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the exercise.
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</p><p>
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The advantage of the OEF format is that exercises under it are very easy
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to create. But it should be said that these exercises, in particular those
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created by $module_title, are not as performing as native exercises of a
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system such as WIMS. It is hard to imagine, at least for the time being,
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the WIMS exercises such as Q-Puzzle, the Coincidence series or again the
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Shoot series, be transformed into oef format.
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</p><p>
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Please refer also to
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!href cmd=help&special_parm=examples the examples
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 to have an idea of the structure of an OEF file.
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</p>
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<h4>Basic syntax</h4>
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<p>The format of a OEF file is very similar to LaTeX. It is composed of
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directives followed by one or more parameters. A directive is a word
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preceeded by the character <span class="tt wims_code_variable">\</span>,
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and the parameters are enclosed in braces.
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For example, in the following sentence
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</p><pre>
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   \choice{The answer is}{yes}{no}
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</pre>
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there is a directive named <span class="tt">choice</span>,
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which has 3 parameters, namely, <span class="tt">The answer is</span>, <span class="tt">yes</span>
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and <span class="tt">no</span>.
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<h4>List of directives</h4>
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<p>Here is a brief list of directives recognized by the OEF manager of WIMS.
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See also
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!href cmd=help&special_parm=parameters help on parameters
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 for the syntax to define parameters.
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</p>
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