ARITHMETIC(6) BSD Games Manual ARITHMETIC(6)NAMEarithmetic — quiz on simple arithmeticSYNOPSISarithmetic [-o +-x/] [-r range]
DESCRIPTIONarithmetic asks you to solve problems in simple arithmetic. Each ques‐
tion 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 +-x/ By default, arithmetic 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, respec‐
tively. If you give one of these characters more than once,
that kind of problem will be asked correspondingly more often.
-r range If a range is supplied, arithmetic selects the numbers in its
problems in the following way. For addition and multiplica‐
tion, 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, 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 ALSObc(1), dc(1)BSD May 31, 1993 BSD
