mupad new unit creation gives error on Evaluate all multiple times

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timo 2015-11-1

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I define a new unit with Mupad

delete kiloWHour;
unit::newUnit(kiloWHour= unit::kiloW*unit::hour)

The problem is that every time I evaluate my notebook from start it gives me an error that the unit is already defined The first delete doesn't do anything. Is this bug in MUPAD ?

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Walter Roberson 2015-11-1

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If delete was going to work at all, then you would need to delete unit::KiloWHour

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timo 2015-11-1

nice try -_-''

Error: The identifier 'unit' is protected. [delete]

Walter Roberson 2015-11-7

http://www.mathworks.com/help/symbolic/mupad_ref/unprotect.html

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