Path: csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!nx01.iad01.newshosting.com!newshosting.com!69.16.185.11.MISMATCH!npeer01.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!border3.nntp.dca.giganews.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.posted.palinacquisition!news.posted.palinacquisition.POSTED!not-for-mail NNTP-Posting-Date: Mon, 17 Oct 2011 01:38:42 -0500 Date: Sun, 16 Oct 2011 23:38:41 -0700 From: Peter Duniho User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 Newsgroups: comp.lang.java.programmer Subject: Re: prefix notation question References: <0142e456-9e9a-4f71-adaa-5ea9cad35427@u9g2000vby.googlegroups.com> In-Reply-To: <0142e456-9e9a-4f71-adaa-5ea9cad35427@u9g2000vby.googlegroups.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Lines: 24 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 50.46.118.188 X-Trace: sv3-m8iOgOgRK8lJdE7O0wmiifPJI6/4e99q53IVveNOU1NxznN1x2OtyXgLFBDYV29xpSTDDzYZA9TPUNZ!CJw4qrcuFV5p6TJhIRw3kbdFmWv9DksCPDy1HqdEm7YytUwDq9JXLfPdwe/y7jp/VnFp7uTszve2!lGatHC3sRr20ORJ6VZ+vbkDvzu7OdhrOJHGQO+xy47A= X-Complaints-To: abuse@iinet.com X-DMCA-Complaints-To: abuse@iinet.com X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 2404 Xref: x330-a1.tempe.blueboxinc.net comp.lang.java.programmer:8900 On 10/16/11 8:58 PM, Chad wrote: >> [...] >> Ask your professor. > > I did. He told me to come by during his office hours. I told him I > couldn't because of work. He hasn't responded back. None of that does anything to make your question any more of a Java question, nor any more a question that should be answered by someone other than your professor. Personally, I don't see what the difficulty is. The main thing to understand is that your professor's use of prefix notation includes the idea that an operator can have variable arity, and he obviously has rules for how to deal with that (using the parentheses). But this isn't the place for your homework assignments to be explained. Your professor needs to be involved, so he can improve the clarity of the assignments and understand the level at which his students are operating. It's his job to help you learn. Insist that he do that job. Pete