

 
Manual Reference Pages  ARITHMETIC (6)
NAME
arithmetic
 quiz on simple arithmetic
CONTENTS
Synopsis
Description
Diagnostics
See Also
SYNOPSIS
arithmetic
[o +x/]
[r range]
DESCRIPTION
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 endoffile 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, respectively.
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 multiplication, 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 ALSO
bc(1),
dc(1)
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