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ARITHMETIC(6)          BSD Reference Manual         ARITHMETIC(6)


NAME
       arithmetic - quiz on simple arithmetic

SYNOPSIS
       arithmetic [ -o +-x/ ] [ -r range ]

DESCRIPTION
       Arithmetic  asks  you  to  solve problems in simple arith-
       metic.  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,  arithmetic asks questions on addition
              of numbers from 0 to 10, and corresponding subtrac-
              tion.   By  supplying one or more of the characters
              +-x/, you can ask for problems  in  addition,  sub-
              traction,  multiplication,  and  division,  respec-
              tively.  If you give one of these  characters  more
              than  once, that kind of problem will be asked cor-
              respondingly more often.

       -r     If a range is supplied, arithmetic selects the num-
              bers  in  its  problems  in the following way.  For
              addition and  multiplication,  the  numbers  to  be
              added or multiplied are between 0 and range, inclu-
              sive.   For  subtraction  and  division,  both  the
              required result and the number to divide by or sub-
              tract will be between 0  and  range.   (Of  course,
              arithmetic  will  not ask you to divide by 0.)  The
              default range is 10.

       When you get a problem wrong, arithmetic 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.

       Arithmetic  cannot  be  persuaded  to  tell  you the right
       answer.  You must work it out for yourself.

DIAGNOSTICS
       ``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.

SEE ALSO
       bc(1), dc(1)





4th Berkeley Distribution  May 31, 1993                         1