In this graph, 𝑥 and 𝑦 are directly proportional. This means that when 𝑥 doubles, 𝑦 also doubles, and when 𝑥 triples, so does 𝑦. In fact, for all coordinates on this line, you could multiply or ...

Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...

SIAM Journal on Applied Mathematics, Vol. 62, No. 4 (Apr., 2002), pp. 1369-1382 (14 pages) Consider an inverse source problem for Maxwell's equations which arises in determining locations of epileptic ...