.\" 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.
.\" %sccs.include.redist.man%
.\" @(#)arithmetic.6 8.1 (Berkeley) %G%
arithmetic \- quiz on simple arithmetic
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:
asks questions on addition of numbers from 0 to 10, and corresponding
By supplying one or more of the characters
you can ask for problems in addition, subtraction, multiplication, and
If you give one of these characters more than once, that kind of problem
will be asked correspondingly more often.
selects the numbers in its problems in the following way.
For addition and multiplication, the numbers to be added or multiplied
For subtraction and division, both the required result and the number to
divide by or subtract will be between 0 and
will not ask you to divide by 0.) The default
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.
``What?'' if you get a question wrong.
``Right!'' if you get it right.
``Please type a number.'' if arithmetic doesn't understand what you typed.