Path: csiph.com!weretis.net!feeder4.news.weretis.net!feeder5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: Karl Ratzsch Newsgroups: comp.graphics.apps.gnuplot Subject: Re: Draw circle with standard form? Date: Mon, 16 Oct 2017 10:10:06 +0200 Organization: solani.org Lines: 13 Message-ID: References: <60ca5673-4741-4fe6-b183-5c0cda561e14@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: solani.org 1508141406 8647 eJwFwQkBwDAIA0BLQHiKnIYO/xJ2F0jNKc9Ij43d5wq5uB1TPNbcgqgIteeJJT40g0YeNfYPFIEQug== (16 Oct 2017 08:10:06 GMT) X-Complaints-To: abuse@news.solani.org NNTP-Posting-Date: Mon, 16 Oct 2017 08:10:06 +0000 (UTC) User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 Content-Language: de-DE-1901 In-Reply-To: <60ca5673-4741-4fe6-b183-5c0cda561e14@googlegroups.com> X-NNTP-Posting-Host: eJwFwYEBADAEA7Cbhnacw/D/CUugPHzXCBoWGxPsXpF+cadKEZ0YFjpMsJV+nJZ73bWqPzOVEeA= Cancel-Lock: sha1:GRZDunVXiCzxVDz14xm6pBYMNNo= X-User-ID: eJwFwYkRwDAIA7CVSsA84yScvf8IleBpuRWJDAgq8Ls4L0oydVHh6xacrM7DhzfLloi7xfkBIJYRtQ== Xref: csiph.com comp.graphics.apps.gnuplot:3780 Am 15.10.2017 um 17:41 schrieb Lawrence Bottorff: > Would it be possible to plot a circle in an x,y cartesian graph by just giving the standard form, i.e., (x - h)**2 + (y - k)**2 = r**2 ... or some variation thereof like a circle centered on (0,0) x**2 + y**2 = r**2 ? > Gnuplot is not a symbolic math package. It has to calculate the x and y values of each point on the circle from one independent variable that you can sample over the circumference. plot sample [th=0:2*pi] "+" us (r*cos(th)):(r*sin(th)) Karl