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Annotation of 43BSDTahoe/man/man6/arithmetic.6, revision 1.1

1.1     ! root        1: .\"    @(#)arithmetic.6        6.2 (Berkeley) 5/6/86
        !             2: .\"
        !             3: .TH ARITHMETIC 6  "May 6, 1986"
        !             4: .AT 3
        !             5: .SH NAME
        !             6: arithmetic \- provide drill in number facts
        !             7: .SH SYNOPSIS
        !             8: .B /usr/games/arithmetic
        !             9: [
        !            10: .B +\-x/
        !            11: ] [ range ]
        !            12: .SH DESCRIPTION
        !            13: .I Arithmetic
        !            14: types out simple arithmetic problems, and waits for an answer to be typed in.
        !            15: If the answer is correct, it types back \*(lqRight!\*(rq, and a new problem.
        !            16: If the answer is wrong, it replies \*(lqWhat?\*(rq,
        !            17: and waits for another answer.
        !            18: After every twenty problems, it publishes
        !            19: statistics on correctness and the time required to answer.
        !            20: .PP
        !            21: To quit the program, type an interrupt (delete).
        !            22: .PP
        !            23: The first optional argument determines the kind of problem to be generated;
        !            24: .B +\-x/
        !            25: respectively cause addition, subtraction, multiplication, and division
        !            26: problems to be generated.
        !            27: One or more characters can be given;
        !            28: if more than one is given, the different types of
        !            29: problems will be mixed in random order; default is
        !            30: .B +\-.
        !            31: .PP
        !            32: .I Range
        !            33: is a decimal number;
        !            34: all addends, subtrahends, differences, multiplicands, divisors,
        !            35: and quotients will be less than or equal to the value of
        !            36: .IR range .
        !            37: Default
        !            38: .I range
        !            39: is 10.
        !            40: .PP
        !            41: At the start, all numbers less than or equal to
        !            42: .I range
        !            43: are equally likely to appear.
        !            44: If the respondent makes a mistake,
        !            45: the numbers in the problem which was missed
        !            46: become more likely to reappear.
        !            47: .PP
        !            48: As a matter of educational philosophy, the program will
        !            49: not give correct answers, since the learner should, in principle,
        !            50: be able to calculate them.
        !            51: Thus the program is intended to provide drill for
        !            52: someone just past the first learning stage, not to teach number facts
        !            53: .I de
        !            54: .IR novo .
        !            55: For almost all users, the relevant statistic should be
        !            56: time per problem, not percent correct.

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