蒙地卡羅求 PI 副本 | JavaScript 程式專案

{"id":41272,"student_id":142,"content":"stopRendering();\npen.size = 0;\npen.fillColor = \"white\"\npen.drawRect(0, 0, 640, 480)\n var hmdic=0\n  var hmdir=0\nforever(function() {\n    for (var i = 0; i \u003c 1000; i++) {\n        var a = Math.random()*480\n        var b = Math.random()*360\n        var mx = 320\n        var my = 240\n \n        if (Math.sqrt((a-mx)*(a-mx)+(b-my)*(b-my)) \u003c 120) {\n            pen.fillColor = \"red\"\n            pen.drawRect(a, b, 1, 1)\n            hmdic++\n        } else {\n            // pen.fillColor = \"red\"\n            // pen.drawRect(a, b, 1, 1)\n            // hmdir++\n        }\n        // pen.fillColor = \"white\"\n        // pen.drawRect(10, 20, 250, 30)\n        // print(\"pi\"+4*hmdic/(hmdir+hmdic),10,20)\n\n    }\n})","created_at":"2018-09-08T09:57:09.267+08:00","updated_at":"2019-11-10T10:13:33.430+08:00","name":"蒙地卡羅求 PI 副本","language":"javascript","screenshot":{"url":"https://cdn4.koding.school/uploads/project/screenshot/41272/5babdba08812f21f416a62fa7a5f619d.jpg"},"parent_id":31606,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":123,"hashid":"rdvsdnrm","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}