蒙地卡羅求 PI 副本 | JavaScript 程式專案

{"id":57033,"student_id":172,"content":"stopRendering();\n\npen.size = 0;\npen.fillColor = \"white\";\npen.drawRect(0, 0, 640, 480);\nvar total = 0;\nvar inside = 0;\n\n\nforever(function() {\n    for (var i = 0; i \u003c 100; i++) {\n        var x = Math.random()*480;\n        var y = Math.random()*480;\n        var d = Math.sqrt((x - 240)*(x - 240) + (y - 240)*(y - 240));\n        if(d\u003e240){  \n        pen.fillColor = \"red\";\n        }else{\n            inside+=1;\n            pen.fillColor = \"orange\"\n        }\n        total+=1;\n        pen.drawRect(x, y, 1, 1);\n    }\n    pen.fillColor = \"white\";\n    pen.drawRect(0,0,200,35);\n    print(\"pi:\" + (inside*4)/total , 10, 10);\n})","created_at":"2019-02-16T10:06:12.937+08:00","updated_at":"2019-11-02T01:57:39.139+08:00","name":"蒙地卡羅求 PI 副本","language":"javascript","screenshot":{"url":"https://cdn8.koding.school/uploads/project/screenshot/57033/94ca8544e66201ab5fdb10458ff281df.jpg"},"parent_id":31606,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":93,"hashid":"p93szrzg","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}