The Applications of Matrices | What I wish my teachers told me way earlier

Comments · 2.7K

• CH

  @chaselongenecker5398 · 3 years ago

  Modern mathematics education’s biggest crime is not explaining what the hell anything is useful for before you learn it.

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• GR

  @gracialonignasiver6302 · 6 years ago

  &quot;There may not be a zombie infestation anytime soon, but this kind of math could be used to analyze how a virus could spread throughout a population, for example.&quot;<br><br>That aged well...

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• FE

  @felipeflores5403 · 6 years ago

  Man, you talked about pandemics and riots and I&apos;m here watching this in June 2020 convinced you&apos;re an actual prophet

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• CF

  @cfgauss71 · 6 years ago

  Showing how matrices can be used to blur images was awesome. &nbsp; As a civil engineer, I should add that matrices are also used to analyze entire structures (building, &nbsp;bridges, etc), &nbsp;where a force matrix (ex: the loads the individual beams or columns experience) is equal to the product of a stiffness matrix (reflects the material properties) and displacement matrix (how much the members of the structure move). &nbsp;In effect, it&apos;s Hooke&apos;s Law, only taken to an extreme level using matrices.

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• JU

  @justingolden21 · 5 years ago

  Zach: &quot;There may not be a zombie infestation any time soon&quot;<br><br>2020: &quot;Don&apos;t test me child&quot;

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• ZI

  @Zilberlex · 6 years ago

  He did not explicitly say it, but seeing the number of graph triangles in the last part basically allows you to calculate for potential threesomes.

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• MA

  @martinmartinmartin2996 · 6 years ago

  As an electronics engineer that dabbles in math: <br><br> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; For 30 years I have puzzled: WHAT IS an eigenvector ? <br> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Finally (for the first time, after 40 years ) I have UNDERSTOOD !<br>Thank you !

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• BH

  @BharCode09 · 6 years ago

  Regarding you recommending 3B1B: Every time a youtuber recommends another youtube channel&apos;s video, purely for the sake of it&apos;s quality content and not bcz it&apos;s sponsored, the humanity is restored!

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• ED

  @edwardwong654 · 2 years ago

  I remember in the movie, &quot;No Way Out&quot;, with Kevin Costner, he is a naval officer who works for the Secretary of Defence, Brice (played by Gene Hackman). Both of them are an affair with Sean Young, who was killed by Brice when he became enraged at her. Brice then works on a coverup to protect his powerful position, at which time they find an indiscernible negative of Costner in Young&apos;s residence. Brice decides to use the negative as a phony coverup that it was the spy, &quot;Yuri&quot; &nbsp;who had killed Young. Brice asks, who else of course, but Costner, to handle the of enhancing the Yuri negative in order to create a red herring to hide his involvement in the death of Young. Costner has no choice but to handle the enhancing, by giving it to an expert, who uses a process with Eigenvalues, to start the intensive enhancement process. But I never forgot the use of Egienvalues from that movie. That was actually a pretty good movie. Spoiler alert - turns out that Costner, by coincidence, was actually the double agent, Yuri. Also the DC Metro scenes were filmed in Baltimore, and not in DC.

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• JA

  @JanBrugg · 1 year ago

  <a href="https://www.youtube.com/watch?v=rowWM-MijXU&amp;t=555">9:15</a> there‘s no way Zach predicted the Pandemic 6 months before it happened💀💀

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• JO

  @jonny2575 · 6 years ago

  <b>No one:</b> this video is getting long and uninteresting..<br><b>You:</b> “As much as I’d love to keep going into depth on different subjects, this video is already quite long.”<br>You sir are a gentleman and a scholar. PLEASE make a part 2.

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• TH

  @theonionpirate1076 · 6 years ago

  &quot;Any vector that is only scaled by a matrix is called an eigenvector of that matrix. And how much the vector is scaled... is known as the eigenvalue.&quot;<br><br>Wow, those two simple facts would have been nice to have known when I was taking linear algebra.

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