Working with MUMIE as author
 Initial steps:
 Articles:
 Problems:
 Visualizations:
 Media Documents:
Working with MUMIE as teacher
Using MUMIE via plugin in local LMS
FAQ for examination lecturers
You're not logged in
Working with MUMIE as author
Working with MUMIE as teacher
Using MUMIE via plugin in local LMS
FAQ for examination lecturers
With \explanation
the author can define a feedback that the user gets if an answer wasn't (completely) correct. A simple example in WebMiau
\explanation[optional condition]{text}
.
Within the explanation text variables can be used the same way as in question tasks and answer texts. Explanations on question level are displayed if one or more than one answers wasn't correct. On answer level explanations are displayed if the specific answer wasn't correct. The author can optionally decide if an explanation is displayed only if certain mistakes were made or if a random variable has a specific value.
With \showExplanation{always}
the author can define, that an explanations is always displayed  even if the user's answer was correct. Be aware: This doesn't work for single answers, but only the whole question. The command has no effect if used within an answer environment. A simple example in WebMiau
123456789 \begin{question}
\showExplanation{always}
\explanation{This will always be displayed.}
...
\begin{answer}
...
\explanation{This will always be displayed too.}
\end{answer}
\end{question}
The optional condition is an expression that can be evaluated to true or false. It can contain
NOT [equal(ans_1,f)]
instead of NOT equal(ans_1,f)
) z != 0
instead of z!=0
)Syntax  Description  Example 

length(arg) 
Returns the length of a string. arg is a variable or an answer reference.  length(ans)=length(myvar) OR length(ans)>3 
correct(arg) 
Returns if a specific answer was correct. arg is a an answer reference. Works only on question or answer level.  correct(ans_1) AND NOT[correct(ans)] example in WebMiau 
count(symbol, arg) 
Returns how often the symbol occurs. arg is a variable or an answer reference.  count((,ans)=count(),ans) , count(+,ans_1)=0 , count(1,ans)=2 
valid(arg) 
Checks if the given answer is a valid mathematical expression. arg is an answer reference.  valid(ans) 
equal(arg1, arg2) 
Checks if the two expressions are algebraic identical. If this check is not successful a numerical comparison follows. If both arguments are matrix variables the equality of those matrices is checked algebraically. If one of those matrices is not completely edited (e.g. in case of an answer reference) it will be evaluated to false.  equal(ans_2, myvar) 
equalFormat(arg1, arg2) 
Checks if the two matrices have the same format. arg1/arg2 is a matrix variable or a matrix answer reference. If one of those matrices is not completely edited (e.g. in case of an answer reference) it will be evaluated to false.  equalFormat(ans_5, aMatrix) 
equalString(arg1, arg2) 
Checks if the string representation of the two arguments are identical. arg1/arg2 is a variable, an answer reference or a string.  equalString(Hallo,ans_5) , equalString(ans,myStringVar) 
equalTrimmedString(arg1, arg2) 
Same as equalString but the arguments are trimmed first. 

equalChoice(arg, choices) 
Compares an answer with the given choices representation. For mc.unique its the choice number that is selected by the user. For mc.yesno, mc.multiple and mc.matrix it's a string of zeros and ones indicating which choices are selected by the user. E.g. 011 means that the last two choices are selected, but not the first. The wildcard '?' can be used. E.g., 0?1 means, that the third choice is selected, but not the first. If the second choice was selected doesn't matter. This of course only works for answer type mc.yesno, mc.multiple and mc.matrix. For type mc.matrix the strings of zeros and ones are given rowwise seperated by '\\', e.g. 101\\?01 for a multiple choice matrix with two rows and three columns. arg is an answer reference. 
mc.uniqueequalChoice(ans,4) mc.multiple/mc.yesno equalChoice(ans,011001) , equalChoice(ans_2,011?01) mc.matrix equalChoice(ans,101\\??1) example in WebMiau 
equalChoice(choices) 
Same as equalChoice(arg, choices , but for questions of type mc.unique, mc.yesno and mc.multiple. No answer is referenced, because there are no answer environments. It can also be used for an answer. In that case it is short for equalChoice(ans, <choices>) . 
mc.uniqueequalChoice(4) mc.multiple/mc.yesno equalChoice(011001) , equalChoice(011?01) 
edited 
Evaluates to true on answer level if the current answer was edited. Evalues to true on question level if at least one answer of the current question was edited.  example in WebMiau 
edited(arg) 
Evaluates to true if the referenced answer was edited. arg is an answer reference  edited(ans) , edited(ans_4) example in WebMiau 
condition(arg) 
Substitutes this command with arg. That is helpful if one wants to reuse the same condition multiple times. arg is a string variable. It's value is a valid condition expression.  declared variable: \string{mycondition}{NOT [edited(ans)] OR count(/,ans)=0 } reusing it: condition{mycondition} OR equalString(42,ans) example in WebMiau 
answerEqual(arg) 
At the moment that only works for types input.interval and input.finitenumberset. It compares the current answer with the given expression arg. The expression may contain variables. Be aware that you have to escape interval brackets. (see examples)  input.interval examplesNOT [edited] OR answerEqual(\[a;3\]) , answerEqual(\[infinity;3\],\(4;5\)) input.finitenumberset examples answerEqual({a,b}) , answerEqual({0,2,4,8}) The curly braces are not mandatory, because there is no second argument for the function: answerEqual(a,b) , answerEqual(0,2,4,8) example in WebMiau 
answerEqual(arg1, arg2) 
Works the same as answerEqual(arg) but with the first argument arg1 you give an explicit answer reference (e.g. ans, ans_1, ...) with which the expression arg2 will be compared. arg2 is for type input.interval either an interval or a list intervals separated by commas and for type input.finitenumberset a set defined using the following syntax: {1st element, 2nd element, ...}. 
input.interval examplesNOT [edited] OR answerEqual(ans_2,\[a;3\]) , answerEqual(ans_1,\[infinity;3\],\(4;5\)) input.finitenumberset examples answerEqual(ans_1,{a,b}) , answerEqual(ans_2,{0,2,4,8}) The curly braces are mandatory. example in WebMiau 
answerExactMatch(arg) 
Analog to answerEqual , but the user answer has to be exactly the same. E.g. (3;3) and (4;4) are both emty sets and therefore equal but they are not an exact match. At the moment that only works for type input.interval and input.finitenumberset. 
input.interval examplesNOT [edited] OR answerExactMatch(\[a;3\]) , answerExactMatch(\[infinity;3\],\(4;5\)) input.finitenumberset examples answerExactMatch({a,b}) , answerExactMatch({0,2,4,8}) The curly braces are not mandatory, because there is no second argument for the function: answerExactMatch(a,b) , answerExactMatch(0,2,4,8) example in WebMiau 
answerExactMatch(arg1, arg2) 
Works the same as answerExactMatch(arg) but with the first argument arg1 you give an explicit answer reference (e.g. ans, ans_1, ...) with which the expression arg2 will be compared. arg2 is for type input.interval either an interval or a list intervals separated by commas and for type input.finitenumberset a set defined using the following syntax: {1st element, 2nd element, ...}. 
input.interval examplesNOT [edited] OR answerExactMatch(ans_2,\[a;3\]) , answerExactMatch(ans_1,\[infinity;3\],\(4;5\)) input.finitenumberset examples answerExactMatch(ans_1,{a,b}) , answerExactMatch(ans_2,{0,2,4,8}) The curly braces are mandatory. example in WebMiau 
Updated by Michael Heimann, 4 weeks ago – 791a82e