{"id":241,"date":"2014-01-17T21:42:21","date_gmt":"2014-01-18T02:42:21","guid":{"rendered":"https:\/\/people.clas.ufl.edu\/fgarvan\/?page_id=241"},"modified":"2026-03-19T08:11:17","modified_gmt":"2026-03-19T12:11:17","slug":"sage","status":"publish","type":"page","link":"https:\/\/people.clas.ufl.edu\/fgarvan\/sage\/","title":{"rendered":"SAGE"},"content":{"rendered":"\r\n<section class=\"fullwidth-text-block\">\r\n\t<div class=\"container px-0 pt-5\">\r\n\t\t<div class=\"row align-items-start\">\r\n\t\t\t<div class=\"col-12\">\r\n\t\t\t\t\n<h2 class=\"wp-block-heading\">Instructions for using SAGE<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Go to <a href=\"http:\/\/cloud.sagemath.com\">SageMathCloud<\/a>.<br>\nCreate an account or login using your email address and sagecloud password.<\/li>\n<li>For an overview of SageCloud see <a href=\"http:\/\/www.youtube.com\/watch?v=sqEBmyeWc4g\">YOUTUBE VIDEO<\/a>. However this video is for computer geeks with a lot of patience. Here is <a href=\"https:\/\/itconnect.uw.edu\/wares\/uware\/sage-mathematics-software\/\" target=\"_blank\" rel=\"noopener\">more information regarding Sage<\/a><\/li>\n<li>After you login to SageCloud click on <strong>New Project<\/strong>.<\/li>\n<li>Under <strong>Title <\/strong> enter something like<br>\n<tt>Direction Fields - Homework 3<\/tt><br>\nThen click on <strong>Create Project<\/strong>.<br>\nA new window should open showing your Projects. Click on <strong>Direction Fields &#8211; Homework 3<\/strong> or whatever name you gave your project. Yet another window should open. Then you click on <strong>Create or Import a File, Worksheet, Terminal or Directory..<\/strong>. Then click on <strong>Sage Worksheet<\/strong>.<\/li>\n<li>This will bring you to a blank page that looks like:\n<pre>1 |\r\n\r\n\r\n\r\n<\/pre>\n<p>Type as follows:<\/p><!--PARAGRAPH_SEPARATOR--><pre>1 var('x,y')\r\n2 df=plot_slope_field(4*x\/y, (x,-3,3), (y,-6,6))\r\n3 show(df)\r\n<\/pre>\n<p>(Of course you dont actually type the line numbers 1,2,3 etc).<br>\nNow hold the SHIFT key and press the ENTER key. The plot of the direction field of the DE<br>\n<tt>dy\/dx = 4x\/y <\/tt> should appear.<br>\n<a href=\"https:\/\/people.clas.ufl.edu\/fgarvan\/files\/ploteg1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-267\" src=\"https:\/\/people.clas.ufl.edu\/fgarvan\/files\/ploteg1-300x146.png\" alt=\"ploteg1\" width=\"300\" height=\"146\" srcset=\"https:\/\/people.clas.ufl.edu\/fgarvan\/files\/ploteg1-300x146.png 300w, https:\/\/people.clas.ufl.edu\/fgarvan\/files\/ploteg1.png 784w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><br>\nFor more examples see the sage worksheet below.<\/p><\/li>\n<li>Sample SAGE WORKSHEETS:\n<ul>\n<li><a href=\"http:\/\/www.qseries.org\/fgarvan\/DF-examples.sagews\">DF-examples.sagews<\/a> (sagews)<\/li>\n<li><a href=\"https:\/\/people.clas.ufl.edu\/fgarvan\/content-removed\/\">DF-examples.pdf<\/a> (PDF)<\/li>\n<\/ul>\n<\/li><\/ul>\n\n\n\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/section>\r\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":140,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"featured_post":"","footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-241","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/pages\/241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/users\/140"}],"replies":[{"embeddable":true,"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/comments?post=241"}],"version-history":[{"count":10,"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/pages\/241\/revisions"}],"predecessor-version":[{"id":3603,"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/pages\/241\/revisions\/3603"}],"wp:attachment":[{"href":"https:\/\/people.clas.ufl.edu\/fgarvan\/wp-json\/wp\/v2\/media?parent=241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}