<?xml version="1.0" encoding="UTF-8"?><oembed><type>video</type><version>1.0</version><html>&lt;iframe src=&quot;https://www.loom.com/embed/2b0bba8814ab41b0973cacc9a9bb6488&quot; frameborder=&quot;0&quot; width=&quot;1670&quot; height=&quot;1252&quot; webkitallowfullscreen mozallowfullscreen allowfullscreen&gt;&lt;/iframe&gt;</html><height>1252</height><width>1670</width><provider_name>Loom</provider_name><provider_url>https://www.loom.com</provider_url><thumbnail_height>1252</thumbnail_height><thumbnail_width>1670</thumbnail_width><thumbnail_url>https://cdn.loom.com/sessions/thumbnails/2b0bba8814ab41b0973cacc9a9bb6488-6448e0fcf8c4c651.gif</thumbnail_url><duration>1090.98</duration><title>Revision of matrix arithmetics (ECON2125/6012, March 10)</title><description>In this video, I provide a quick overview of the essential concepts related to matrices, including their structure, operations like scalar multiplication, and the importance of determinants. I emphasize the need to refer to chapters 8 and 9 of the Seminar in Blue textbook for further clarification. If you have any questions or need more details, please don&apos;t hesitate to reach out.</description></oembed>