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NetBSD 6.1.5 - man page for arithmetic (netbsd section 6)

ARITHMETIC(6)				 BSD Games Manual			    ARITHMETIC(6)

     arithmetic -- quiz on simple arithmetic

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

     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 end-of-file charac-

     The options are as follows:

     -o      By default, arithmetic asks questions on addition of numbers from 0 to 10, and cor-
	     responding 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      If a range is supplied, arithmetic selects the numbers in its problems in the fol-
	     lowing 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 your-

     ``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.

     bc(1), dc(1)

BSD					   May 31, 1993 				      BSD

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