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Annotation of 43BSDReno/games/arithmetic/arithmetic.6, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1989 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" This code is derived from software contributed to Berkeley by
                      5: .\" Eamonn McManus of Trinity College Dublin.
                      6: .\"
                      7: .\" Redistribution and use in source and binary forms are permitted provided
                      8: .\" that: (1) source distributions retain this entire copyright notice and
                      9: .\" comment, and (2) distributions including binaries display the following
                     10: .\" acknowledgement:  ``This product includes software developed by the
                     11: .\" University of California, Berkeley and its contributors'' in the
                     12: .\" documentation or other materials provided with the distribution and in
                     13: .\" all advertising materials mentioning features or use of this software.
                     14: .\" Neither the name of the University nor the names of its contributors may
                     15: .\" be used to endorse or promote products derived from this software without
                     16: .\" specific prior written permission.
                     17: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     18: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     19: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     20: .\"
                     21: .\"    @(#)arithmetic.6        6.6 (Berkeley) 6/23/90
                     22: .\"
                     23: .TH ARITHMETIC 6 "June 23, 1990"
                     24: .UC 4
                     25: .SH NAME
                     26: arithmetic \- quiz on simple arithmetic
                     27: .SH SYNOPSIS
                     28: .B arithmetic
                     29: .B [
                     30: \-o +\-x/
                     31: .B ]
                     32: .B [
                     33: \-r range
                     34: .B ]
                     35: .SH DESCRIPTION
                     36: .I Arithmetic
                     37: asks you to solve problems in simple arithmetic.
                     38: Each question must be answered correctly before going on to the next.
                     39: After every 20 problems, it prints the score so far and the time taken.
                     40: You can quit at any time by typing the interrupt or end-of-file character.
                     41: .PP
                     42: The options are as follows:
                     43: .TP
                     44: \-o
                     45: By default,
                     46: .I arithmetic
                     47: asks questions on addition of numbers from 0 to 10, and corresponding
                     48: subtraction.
                     49: By supplying one or more of the characters
                     50: .BR +\-x/ ,
                     51: you can ask for problems in addition, subtraction, multiplication, and
                     52: division, respectively.
                     53: If you give one of these characters more than once, that kind of problem
                     54: will be asked correspondingly more often.
                     55: .TP
                     56: \-r
                     57: If a
                     58: .I range
                     59: is supplied,
                     60: .I arithmetic
                     61: selects the numbers in its problems in the following way.
                     62: For addition and multiplication, the numbers to be added or multiplied
                     63: are between 0 and
                     64: .IR range ,
                     65: inclusive.
                     66: For subtraction and division, both the required result and the number to
                     67: divide by or subtract will be between 0 and
                     68: .IR range .
                     69: (Of course,
                     70: .I arithmetic
                     71: will not ask you to divide by 0.)  The default
                     72: .I range
                     73: is 10.
                     74: .PP
                     75: When you get a problem wrong,
                     76: .I arithmetic
                     77: will remember the numbers involved, and will tend to select those numbers
                     78: more often than others, in problems of the same sort.
                     79: Eventually it will forgive and forget.
                     80: .PP
                     81: .I Arithmetic
                     82: cannot be persuaded to tell you the right answer.
                     83: You must work it out for yourself.
                     84: .SH DIAGNOSTICS
                     85: ``What?'' if you get a question wrong.
                     86: ``Right!'' if you get it right.
                     87: ``Please type a number.'' if arithmetic doesn't understand what you typed.
                     88: .SH "SEE ALSO"
                     89: bc(1), dc(1)

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