The Best Explanation of the Equation of an Ellipse

array(10) { [0]=> object(stdClass)#4964 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "229csazhybg" ["related_video_title"]=> string(33) "Sum of integers squared explained" ["posted_time"]=> string(20) "10 лет назад" ["channelName"]=> string(17) "mathematicsonline" } [1]=> object(stdClass)#4937 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "5nW3nJhBHL0" ["related_video_title"]=> string(59) "Why is there no equation for the perimeter of an ellipse‽" ["posted_time"]=> string(21) "4 года назад" ["channelName"]=> string(14) "Stand-up Maths" } [2]=> object(stdClass)#4962 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "pQa_tWZmlGs" ["related_video_title"]=> string(53) "Why slicing a cone gives an ellipse (beautiful proof)" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(11) "3Blue1Brown" } [3]=> object(stdClass)#4969 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "c5bbWByJmqc" ["related_video_title"]=> string(35) "Deriving the Equation of an Ellipse" ["posted_time"]=> string(19) "8 лет назад" ["channelName"]=> string(12) "William Rose" } [4]=> object(stdClass)#4948 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "QR2vxfwiHAU" ["related_video_title"]=> string(63) "Foci of an ellipse | Conic sections | Algebra II | Khan Academy" ["posted_time"]=> string(20) "15 лет назад" ["channelName"]=> string(12) "Khan Academy" } [5]=> object(stdClass)#4966 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "mhd9FXYdf4s" ["related_video_title"]=> string(50) "Trigonometry Concepts - Don't Memorize! Visualize!" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(12) "Dennis Davis" } [6]=> object(stdClass)#4961 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "pe_ejTiIcSs" ["related_video_title"]=> string(53) "Похудей на 45 КГ, Выиграй $250,000!" ["posted_time"]=> string(21) "6 дней назад" ["channelName"]=> string(7) "MrBeast" } [7]=> object(stdClass)#4971 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "_tcyjxlZ12E" ["related_video_title"]=> string(80) "01 - Conic Sections: Ellipses - Graphing, Equation of an Ellipse, Focus - Part 1" ["posted_time"]=> string(19) "5 лет назад" ["channelName"]=> string(16) "Math and Science" } [8]=> object(stdClass)#4947 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "mTwDvI_23AI" ["related_video_title"]=> string(96) ""Карлсен повержен! Максим Иванников творит сенсацию"" ["posted_time"]=> string(19) "3 дня назад" ["channelName"]=> string(16) "Reshetnikovchess" } [9]=> object(stdClass)#4965 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "6EzQEdBX_30" ["related_video_title"]=> string(50) "Understanding the Surface Area of a Sphere Formula" ["posted_time"]=> string(20) "12 лет назад" ["channelName"]=> string(17) "mathematicsonline" } }