<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>http://direct.ecency.com</link><image><url>http://direct.ecency.com/logo512.png</url><title>RSS Feed</title><link>http://direct.ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Tue, 14 Apr 2026 04:41:45 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/created/multivariablecalculus/rss.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[Laplace Operator (Laplacian) in Polar Coordinates – PROOF]]></title><description><![CDATA[In this video I derive the Laplace Operator or Laplacian in polar coordinates, which will come in handy when I derive the Laplacian in spherical coordinates in the next video. Since polar coordinates are]]></description><link>http://direct.ecency.com/hive-128780/@mes/294e58ab</link><guid isPermaLink="true">http://direct.ecency.com/hive-128780/@mes/294e58ab</guid><category><![CDATA[hive-128780]]></category><dc:creator><![CDATA[mes]]></dc:creator><pubDate>Wed, 18 Mar 2026 22:45:09 GMT</pubDate><enclosure url="https://images.ecency.com/p/46aP2QbqUqBqwyMYx5rqy9vFZMnbeMhRu3KsA83BYsWYwubDhb3xuohF8YY4nyXF78R9uoi1Lxjqpuw1E7Hq6PY3jerK?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Pringles are examples of hyperbolic paraboloids.]]></title><description><![CDATA[Via AsapSCIENCE.]]></description><link>http://direct.ecency.com/math/@mathfortress/pringles-are-examples-of-hyperbolic-paraboloids</link><guid isPermaLink="true">http://direct.ecency.com/math/@mathfortress/pringles-are-examples-of-hyperbolic-paraboloids</guid><category><![CDATA[math]]></category><dc:creator><![CDATA[mathfortress]]></dc:creator><pubDate>Sat, 13 May 2017 03:28:15 GMT</pubDate><enclosure url="https://images.ecency.com/p/3W72119s5BjWPGGUiZ9pqnZoj8JHYxCCp9dtn2QVfAXvQWGWKJpzq8hFXUA1kgmsgUgTShVhRA3u1tEJdQ3snHSBM2f6FCEhrnr55WwsijvtgceoNVmmoC?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>