inverse and identity matrices can only be used for square matrices. (2x2, 3x3, etc.)
Post on 01-Jan-2016
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Identity Matrix
identity – number used to keep a value the same
identity matrix – matrix used to keep a matrix the same
A*I = I*A = A
Inverse Matrix
inverse – number used to get the identity
inverse matrix – matrix used to get the identity matrix
A*A-1 = A-1*A = I
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