Monthly Archives: November 2012

Wed Nov 21 Update & Next HW assignement

Posted on November 21, 2012 by Suman Ganguli

We reviewed the cofactor expansion for computing determinants (Sec 3.1), and pointed out the special case for triangular matrices. We also talked through exercises 19-24, which indicate how the elementary row operations affect the value of the determinant. That led … Continue reading →

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Khan Academy: Linear Algebra

Posted on November 20, 2012 by Suman Ganguli

You may find the Khan Academy’s Linear Algebra videos helpful.  Here is the video for the topic we discussed in class on Monday: “Finding the determinant of a 3×3 matrix” See also the videos for nxn determinants, and for computing … Continue reading →

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