Use the Author > Vector command.UGCR4 to enter a new vector.  Use the Author > Matrix commandR349O to enter a new matrix.  Use the Calculus > Vector command.WK1F5 or the VECTOR function to generate vectors and matrices.  Use the Calculus > Table commandTX0JH_ or the TABLE function to generate tables of expression values.


An identity matrix is a square matrix whose elements are 1 on the main diagonal and 0 off the main diagonal.  Use the IDENTITY_MATRIX function to generate an identity matrix.  IDENTITY_MATRIX(n) simplifies to an n by n identity matrix.  For example,

IDENTITY_MATRIX(3)

simplifies to the 3 by 3 identity matrix

⎡ 1  0  0 ⎤
⎢         ⎥
⎢ 0  1  0 ⎥
⎢         ⎥
⎣ 0  0  1 ⎦


Other Vectors and MatricesVectors_and_Matrices topics

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