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Contact Us Post Here to Contact Site Administrators and Moderators Thread closed when learner has tried Post 302308623 by methyl on Sunday 19th of April 2009 07:28:12 PM
Old 04-19-2009
Thread closed when learner has tried

I'm not so sure that this thread should have been closed. Though it was clearly homework the student was asking a specific question related to the assignment, but not the answer to the whole assignment.
http:///www.unix.com/unix-dummies-qu...w-get-rid.html .
IMHO The solution is not trivial and would help this and other students.
 
Test Your Knowledge in Computers #391
Difficulty: Medium
Darwin, the open source subset of macOS, has behavior that can be set to comply with UNIX 03.
True or False?

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ARITHMETIC(6)							   Games Manual 						     ARITHMETIC(6)

NAME
arithmetic - provide drill in number facts SYNOPSIS
/usr/games/arithmetic [ +-x/ ] [ range ] DESCRIPTION
Arithmetic types out simple arithmetic problems, and waits for an answer to be typed in. If the answer is correct, it types back "Right!", and a new problem. If the answer is wrong, it replies "What?", and waits for another answer. Every twenty problems, it publishes statis- tics on correctness and the time required to answer. To quit the program, type an interrupt (delete). The first optional argument determines the kind of problem to be generated; +-x/ respectively cause addition, subtraction, multiplication, and division problems to be generated. One or more characters can be given; if more than one is given, the different types of problems will be mixed in random order; default is +- Range is a decimal number; all addends, subtrahends, differences, multiplicands, divisors, and quotients will be less than or equal to the value of range. Default range is 10. At the start, all numbers less than or equal to range are equally likely to appear. If the respondent makes a mistake, the numbers in the problem which was missed become more likely to reappear. As a matter of educational philosophy, the program will not give correct answers, since the learner should, in principle, be able to calcu- late them. Thus the program is intended to provide drill for someone just past the first learning stage, not to teach number facts de novo. For almost all users, the relevant statistic should be time per problem, not percent correct. ARITHMETIC(6)

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