26 minutes on a 350 mhz G3 Mac. All were created with FFermat. There is a later paragraph on the imperative form of switches. Don't leave a toggle switch on unless you wish to use it. Don't adjoin a polynomial variable unless you are going to use it.
Every capability costs a little in performance.
The list may be in any order. Occasionally, after many computations, one develops a large number of now useless arrays, often many of the same name. This can also be done with arrays, and can be done as part of a list of deletions. Toggle switch to control closing of input file when a syntax error occurs while reading. When on and an error occurs, the file is closed.