An example of a function in a program is a sum function. Here’s a simple implementation: define a function named sum that takes two arguments. Call it using variables a and b: int a = 5 ...

If you want to master functional programming, the best place to start is with the Java Function interface. This example will show you four different ways to implement this functional interface in your ...

In this article I present a short tutorial on writing program-defined functions in the R language. Whenever I'm learning about program-defined functions in a new language, I want to know seven things: ...

Is there a reason why functions in most(?) programming languages are designed ... squared root of a positive integer, for example), it's sufficient to return a collection or sequence of values.