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Comments ( 25 )
  1. MathDoctorBob
    December 5, 2012 at 7:33 pm
    Reply

    You’re welcome!

  2. MathDoctorBob
    December 5, 2012 at 8:03 pm
    Reply

    You’re welcome!  I hope to be doing this for a while yet.

  3. Faizan zad
    December 5, 2012 at 8:15 pm
    Reply

    thank you, keep making videos…

  4. Nilanjan Goswami
    December 5, 2012 at 9:14 pm
    Reply

    tnx bob… i v completed a part of my syllabus at youtube… tnx a lot…

  5. MathDoctorBob
    December 5, 2012 at 10:01 pm
    Reply

    You need to find the null space of A-cI. If you haven’t mastered null spaces, finding eigenvectors will be tough.

  6. MathDoctorBob
    December 5, 2012 at 10:52 pm
    Reply

    You’re welcome! Let me know if you have any questions.

  7. Zurielovsko
    December 5, 2012 at 11:02 pm
    Reply

    Doctor, thanks for your helpful videos, you’ve helped me a lot with my Linear Algebra lessons (my teacher makes us copy Howard Anton’s Linear Algebra book).

    Greetings from Mexico

  8. MathDoctorBob
    December 5, 2012 at 11:07 pm
    Reply

    You’re welcome! Glad to be of help. – Bob

  9. AustinDoggie
    December 5, 2012 at 11:24 pm
    Reply

    Thank you! This helped me so much!

  10. MathDoctorBob
    December 5, 2012 at 11:26 pm
    Reply

    Thanks for the high praise! I’m happy to take the assist, but those As have to be earned with your hard work. – Bob

  11. MathDoctorBob
    December 5, 2012 at 11:49 pm
    Reply

    You’re welcome! My odds got better – just got my brown belt in jiu-jitsu. – Bob

  12. Tony Rios
    December 6, 2012 at 12:10 am
    Reply

    Speak softly and carry a big stick.
    you’re a boss dood
    -Tony

  13. OfficialShrillKiller
    December 6, 2012 at 12:48 am
    Reply

    Thank you helps alot.

    If there was a battle royale of all math teachers I’d put money on you

  14. KEVROB6688
    December 6, 2012 at 1:24 am
    Reply

    You are EXCELLENT! best linear algebra teacher I’ve ever listened to! You have solely lead me to A’s in my math class

  15. CrusherBor
    December 6, 2012 at 1:24 am
    Reply

    very nice, slightly above my level for now, but it should come within days. If I might make a suggestion: you’re a big man Dr. Bob, you block out half of your whiteboard at any given time. Could you put a shot with the entire equation at the end maybe? (just a few secs so we can pause the video and take a good look at the entire thing). Other than that: thanks!

  16. MathDoctorBob
    December 6, 2012 at 2:13 am
    Reply

    These days it’s jiu-jitsu, but haven’t competed since 2010. Trained in boxing, muay thai, and vale tudo many years ago. It hurts longer when you get older. – Bob

  17. utkarsh12
    December 6, 2012 at 2:28 am
    Reply

    do you box, or fight?

  18. MathDoctorBob
    December 6, 2012 at 3:25 am
    Reply

    You’re welcome!  – Bob

  19. xBitage
    December 6, 2012 at 4:03 am
    Reply

    Thanks Dr. Bob!

  20. MathDoctorBob
    December 6, 2012 at 4:21 am
    Reply

    I totally botched that comment, so I removed it before it confuses anyone else. Sorry! I annotated the video since checking is a good point that can’t be repeated enough.

    Thanks for the kind words! I hope I’m able to do this for a long time. – Bob

  21. SuperRichardthegreat
    December 6, 2012 at 4:31 am
    Reply

    HI Dr. Bob..Thank you for answering my comment ..it seems i did not sort out the p inverse more carefully.. hahaha and you are right .the inverse of P is (1 1/ 2 1).. you are doing a great job sir ~! 🙂 keep up the good work

  22. SuperRichardthegreat
    December 6, 2012 at 5:30 am
    Reply

    Hi Dr Bob …i would just like to check if my inverse of P @6:20 .is mistaken or correct .. shouldn’t it be the matrix I 1 -1 I and the lower part is I -2 , 1 I ??? i get first the inverse of P which is P^ -1 = 1/ (-1)(-1) – (2)(1) = -1 then multiplied it by -1 ..please correct me if I’am wrong ..you’ve done a great job explaining this topic very well and I am looking forward on more of your videos :).hope you could reply on this comment .Thank you again and God Bless ^.^

  23. MathDoctorBob
    December 6, 2012 at 5:54 am
    Reply

    You’re welcome! - Bob

  24. zetpaanett
    December 6, 2012 at 6:29 am
    Reply

    Thank you Dr Bob! After reading through several articles about this I finally found your video!

  25. MathDoctorBob
    December 6, 2012 at 7:11 am
    Reply

    Thanks for the kind words! I hope to be doing this for a while. – Bob

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