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 ...

It was late 1984, some 39 years ago this month, and I was new to the company where I still work today. Right out of the chute, the president of the company handed his new D of E an assignment: Fix our ...

PhotoMath is a nifty little app. You point your phone camera at a math equation, and it will give you the answer and show you all the steps to solve this particular equation. Following its huge ...

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 ...

Several notions of abstract Volterra operators on spaces of functions of one variable are well known. In this paper, we introduce various notions of abstract Volterra operators in spaces of functions ...