Bővebb ismertető
Introduction
There are times in virtually everyone's education when he or she is asked to graduate from solving contrived problems scribbled by somé teacher on somé blackboard somewhere to answering what school children affectionately call "word problems" drawn in somé measure from the "real world". In arithmetic, for example, students begin to be asked not for the solution to questions like:
{100 - (4 x 10) - (6 x 8)> = ?,
but for answers to questions like: "How much change would you have left over from one dollár if you went to the store and purchased four 10 cent candies and six 8 cent chewing gums?" In the calculus course that comes later, the same, but older student might be asked to compute the dimensions of the largest rectangular area which could be enclosed by fence of fixed length if one side of the enclosure could abut a river and would therefore need no fencing. A question like this would be posed, however, only after the student had become reasonably proficient at solving problems like
max
{XY>
X;Y
s.t. 2X + Y = L.