Re:Math: Are negative numbers real things?
by geekishmatt on Wednesday February 10, 2016 @11:45AM
(#11073979)
Sometimes a subtraction of a unit absolutly legal and you are still in the same model or context. (Temperature loss)
Sometimes a subtraction of a unit is hidden-black-magic and you are switching between two models or contexts but still being in a meta-model or meta-context. (Debits and credits)
It just depends on your model or context how you interprete your value/unit relation, but this is a typical problem in applied physic, engineering or computer science :)
Sometimes a subtraction of a unit is hidden-black-magic and you are switching between two models or contexts but still being in a meta-model or meta-context. (Debits and credits)
It just depends on your model or context how you interprete your value/unit relation, but this is a typical problem in applied physic, engineering or computer science :)