Well, you could look in the result file: If there is a der(x), x is a state variable.

You could also look in the _init.xml file:

  <ScalarVariable

    name = "x"

    valueReference = "1000"

    variability = "continuous" isDiscrete = "false"

    causality = "internal" isValueChangeable = "true"

    alias = "noAlias"

    classIndex = "0" classType = "rSta"

    isProtected = "false" hideResult = "false"

    fileName = "/home/marsj/tmp/a.mo" startLine = "2" startColumn = "3" endLine = "2" endColumn = "9" fileWritable = "true">

    <Real fixed="false" useNominal="false" />

  </ScalarVariable>

classType = "rSta" is a state variable.

Hi,
thanks for the help! Surely, I can look at which variables have derivatives computed.
As I said, I'd like to have a file to show the students but I cannot find the _init.xml file. Shall I set some options in order to produce the file?
I cannot find any file produced under compilation.
Anna

In the OMEdit go to Tools -> Options -> General and under Working Directory you will see a path where you can find generated files of particular simulation, including __init.xml