Path: news.mathworks.com!not-for-mail From: Loren Shure <loren@mathworks.com> Newsgroups: comp.soft-sys.matlab Subject: Re: greater than or less than Date: Thu, 30 Aug 2007 16:51:55 -0400 Organization: The MathWorks Lines: 58 Message-ID: <MPG.2140d13018f6f7989897af@news.mathworks.com> References: <fb5j2h$2n2$1@fred.mathworks.com> <MPG.214081424ffda7f9897ad@news.mathworks.com> <fb70j0$mr6$1@fred.mathworks.com> NNTP-Posting-Host: shurel.dhcp.mathworks.com Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit X-Trace: fred.mathworks.com 1188507115 7902 144.212.219.159 (30 Aug 2007 20:51:55 GMT) X-Complaints-To: news@mathworks.com NNTP-Posting-Date: Thu, 30 Aug 2007 20:51:55 +0000 (UTC) User-Agent: MicroPlanet-Gravity/2.70.2067 Xref: news.mathworks.com comp.soft-sys.matlab:426370 In article <fb70j0$mr6$1@fred.mathworks.com>, jr147@msstate.edu says... > Loren Shure <loren@mathworks.com> wrote in message > <MPG.214081424ffda7f9897ad@news.mathworks.com>... > > In article <fb5j2h$2n2$1@fred.mathworks.com>, > jr147@msstate.edu says... > > > I am writing a program that is going to plot a > function. I > > > don't know the correct way to write a matlab function > that > > > will: 10<=x<=1.2*y (1) > > > > > > y=3.2 > > > > > > Whenever I type in the code as is, MatLab wants me to > > > define x. I am going to put x in another function, ex > > > 2.7+x=t. I am going to plot x vs. t. I just don't know > how > > > to tell MatLab to take values in between the range of > the > > > above stated values in equation (1). > > > > > > > Perhaps an anonymous function will help... It requires > that y be > > defined in advance, but not x. > > > > between = @(x) (x >= 10) & (x < 1.2*y) > > > > then use > > > > x = 1:20 > > out = between(x) > > and you will get a logical vector saying where the > conditions are true > > and not. > > > > -- > > Loren > > http://blogs.mathworks.com/loren/ > > > "x=1:20" > > Does this code mean that MatLab is taken values for x at > 20 equal increments? > > Yes. Perhaps you'd find it valuable to read the Getting Started section of the documentation: http://www.mathworks.com/access/helpdesk/help/techdoc/learn_matlab/bqr_ 2pl.html -- Loren http://blogs.mathworks.com/loren/