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Linear Algebra: Matrices

4/4/2018

 
Matrix Algebra
9 new tutorials are up on matrix algebra. This is your last chance. After this, there is no turning back. You take the blue pill—the story ends, you wake up in your bed and believe whatever you want to believe. You take the red pill—you stay in Wonderland, and I show you how deep the rabbit hole goes. Remember: all I'm offering is the truth. Nothing more. 
  • The linear algebra matrix introduced
  • Matrix addition, scalar multiplication, and "subtraction"
  • Matrix multiplication
  • Matrix transpose
  • Find the determinant of a 2x2 matrix
  • Find the determinant of a 3x3 matrix using cofactor expansion
  • Find the determinant of a 3x3 matrix the fast way
  • Find the inverse of a 2x2 matrix
  • Find the inverse of a 3x3 matrix using the Gauss-Jordan method
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