Pipelining and composition are techniques that are used to set up functions so that they work in sequence so that the output from a function becomes the input for the next function. There are two ways of looking at this: from a computer point of view, and from a mathematical point of view. We'll look at both in this section. Most FP texts start with the latter, but since I assume that most of you will prefer computers over math, let's start with the former instead.
Pipelining
Piping in Unix/Linux
In Unix/Linux, executing a command and passing its output as input to a second command, whose output will yield the input of a third command, and so on, is called a pipeline. This is quite a common application of the...
