{"id":79,"date":"2008-03-14T19:02:25","date_gmt":"2008-03-14T18:02:25","guid":{"rendered":"http:\/\/www.walkingrandomly.com\/?p=79"},"modified":"2008-03-14T19:02:25","modified_gmt":"2008-03-14T18:02:25","slug":"my-recipie-for-a-mathematica-easter-egg","status":"publish","type":"post","link":"https:\/\/walkingrandomly.com\/?p=79","title":{"rendered":"My Recipie for a Mathematica Easter Egg"},"content":{"rendered":"<p>1.Take one <a href=\"http:\/\/www.kathryncramer.com\/kathryn_cramer\/2008\/03\/who-among-you-a.html\">dare<\/a> from<a href=\"http:\/\/www.kathryncramer.com\/\"> Kathryn Cramer<\/a> and obtain a picture from her website.<\/p>\n<p>2. Steal ideas from this <a href=\"http:\/\/demonstrations.wolfram.com\/PrecessionOfTheEquinoxes\/\">demonstration<\/a> by Jeff Bryant.<\/p>\n<p>3. Type the following incantations into Mathematica<\/p>\n<p>SetDirectory[&#8220;\/home\/mike\/Desktop\/random&#8221;];<br \/>\nimage = Import[&#8220;kramer.jpg&#8221;];<br \/>\nxpos[x_] := Floor[x\/N[2\/374.] + 377\/2.]<br \/>\nypos[x_] := Floor[x\/N[2\/499.] + 502\/2.]<br \/>\nimcol[x_, y_] := image[[1]][[1]][[xpos[x]]][[ypos[y]]]\/256.;<br \/>\na = 1; b = 0.9; c = 1;<br \/>\nPlot3D[{Sqrt[ c^2*(1 &#8211; (x^2\/a^2 + y^2\/b^2))], -Sqrt[c^2*(1 &#8211; (x^2\/a^2 + y^2\/b^2))]}, {x, -1, 1}, {y, -1, 1}, ColorFunction -&gt; (RGBColor[imcol[#1, #2]] &amp;), Boxed -&gt; False, Axes -&gt; False, AspectRatio -&gt; 2, ViewAngle -&gt; Pi\/13, ViewPoint -&gt; {-3.00336, 0.86708, 3.14159}, PlotRange -&gt; All, Mesh -&gt; False, PlotPoints -&gt; 400]<\/p>\n<p>Enjoy!<\/p>\n<p style=\"text-align: center\"><img decoding=\"async\" src=\"\/images\/mathematica\/kramer-egg.jpg\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.Take one dare from Kathryn Cramer and obtain a picture from her website. 2. Steal ideas from this demonstration by Jeff Bryant. 3. Type the following incantations into Mathematica SetDirectory[&#8220;\/home\/mike\/Desktop\/random&#8221;]; image = Import[&#8220;kramer.jpg&#8221;]; xpos[x_] := Floor[x\/N[2\/374.] + 377\/2.] ypos[x_] := Floor[x\/N[2\/499.] + 502\/2.] imcol[x_, y_] := image[[1]][[1]][[xpos[x]]][[ypos[y]]]\/256.; a = 1; b = 0.9; c = [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[6,8],"tags":[],"class_list":["post-79","post","type-post","status-publish","format-standard","hentry","category-general-math","category-mathematica"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p3swhs-1h","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=\/wp\/v2\/posts\/79","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=79"}],"version-history":[{"count":0,"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=\/wp\/v2\/posts\/79\/revisions"}],"wp:attachment":[{"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=79"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=79"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/walkingrandomly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=79"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}