5.1. PRINTING

The ability to print information on the screen or into a string or file is useful as a means of conveying the result of a program (if the result is simple enough) and providing run-time information on the current state of the program as well as providing extra information to aid debugging. Naturally, F# provides several functions to print to the screen. In particular, the printf function can be used to print a variety of different types and perform some simple formatting.

The printf function understands several format specifiers: