May need to correct or add an annotation to the video about forgetting the negative signs in the 2nd row of A^-1, as Miro suggests. You say to "check it yourself", but it's indeed wrong. Alien soup is right: column vector x = < 2 -5 > These things happen to all of us humans, so I'm not criticizing - just letting you know! Thanks for the clear explanations and I hope keep up the good work!!
Thank you I was trying to check the work and was feeling very stupid because it would not work as he showed. Then read yours and other comments fixed the signs and boom it worked. Thanks again.
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May need to correct or add an annotation to the video about forgetting the negative signs in the 2nd row of A^-1, as Miro suggests. You say to "check it yourself", but it's indeed wrong. Alien soup is right: column vector x = < 2 -5 > These things happen to all of us humans, so I'm not criticizing - just letting you know! Thanks for the clear explanations and I hope keep up the good work!!
Hi @TheTrevTutor. Just wondering, did you forget the negative signs when rewriting A^-1 at 4:38? Thanks so much for these videos!
Yeah, the answer should be
Thank you I was trying to check the work and was feeling very stupid because it would not work as he showed. Then read yours and other comments fixed the signs and boom it worked. Thanks again.