Needs Answer
In the Java-CAS it is/was possible to calculate a marked part of a term with the "equal" symbol. In the online versions it does not work any more in the same way.
It it not yet implemented or is there an other way to do it.
The same question 
In the Java-CAS it is/was possible to calculate a marked part of a term with the "equal" symbol. In the online versions it does not work any more in the same way.
It it not yet implemented or is there an other way to do it.
Any idea or comment?
what means 'marked part'. ie: leftside() of equation? numerator() of fraction?
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