arithmetic (6)
Leading comments
$NetBSD: arithmetic.6,v 1.11 2003/08/07 09:36:52 agc Exp $
Copyright (c) 1989, 1993
The Regents of the University of California. All rights reserved.
This code is derived from software contributed to Berkeley by
Eamonn McManus of Trinity College Dublin.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
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NAME
arithmetic - quiz on simple arithmeticSYNOPSIS
[-o +-x/ ] [-r range ]
DESCRIPTION
asks you to solve problems in simple arithmetic. Each question must be answered correctly before going on to the next. After every 20 problems, it prints the score so far and the time taken. You can quit at any time by typing the interrupt or end-of-file character.The options are as follows:
- -o
- By default, asks questions on addition of numbers from 0 to 10, and corresponding subtraction. By supplying one or more of the characters +-x/ you can ask for problems in addition, subtraction, multiplication, and division, respectively. If you give one of these characters more than once, that kind of problem will be asked correspondingly more often.
- -r
- If a range is supplied, selects the numbers in its problems in the following way. For addition and multiplication, the numbers to be added or multiplied are between 0 and range inclusive. For subtraction and division, both the required result and the number to divide by or subtract will be between 0 and range (Of course, will not ask you to divide by 0.) The default
- range
- is 10.
When you get a problem wrong, will remember the numbers involved, and will tend to select those numbers more often than others, in problems of the same sort. Eventually it will forgive and forget.
cannot be persuaded to tell you the right answer. You must work it out for yourself.