蒙地卡羅求 PI 副本 | JavaScript 程式專案

{"id":59125,"student_id":265,"content":"\nstopRendering();\npen.size = 0;\npen.fillColor = \"white\";\npen.drawRect( 0, 0, 640, 480);\nvar a = 0;\nvar b = 0;\nforever(function(){\nfor(var i = 0; i  \u003c 1000; i++){\n    var x = Math.floor(Math.random()*480);\n    var y = Math.floor(Math.random()*480);\n    var d = Math.sqrt((x - 240)*(x - 240) + (y - 240)*(y - 240));\n\n    pen.fillColor = \"red\";\n    a++;\n    \n    if(d \u003c 240) {\n        pen.fillColor = \"orange\";\n        b++\n    }\n    \n    pen.drawRect(x,y,1,1);\n}\n\npen.fillColor = \"white\";\npen.drawRect( 0, 0, 200, 35);\nprint(\"PI: \" + b*4/a, 10, 10);\n})","created_at":"2019-03-16T10:19:08.339+08:00","updated_at":"2019-10-21T06:07:41.587+08:00","name":"蒙地卡羅求 PI 副本","language":"javascript","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/59125/c1812db64ddea8dc54f03bba388f36a4.jpg"},"parent_id":31606,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":87,"hashid":"meysqnwk","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}