Computer scientists do it by pointing. Computer scientists do it in arrays. Computer scientists do it with whatever you pass them. Constructivists Constructivists do it without excluding the middle. Cosmologists Cosmologists do it in the first three minutes.
Cosmologists do it with large inflationary periods.
Decision theorists do it optimally. Differential analysts Differential analysts do it in a degenerate case. Fermat Fermat did it in the margin. Fermat tried to do it in the margin, but couldn't fit it in. Functional analysts Functional analysts do it with compact support.