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MAT 211 (22)
Lecture 6

MAT 211 Lecture 6: 4.3 Inverse Matrix
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Department
Mathematics
Course
MAT 211
Professor
Mohacsy Hedvig
Semester
Spring

Description
4.3 Inverse Matrix Matrix arithmetics • Addition/subtraction ◦ Same dimensions • Scalar multiplication • Transposition of a matrix ◦ Interchanging rows and columns • Multiplication ◦ A B ◦ Dim A = n m ◦ Dim B = m k ◦ Dim A B = n k ◦ Not commutative A B = B A • Identity matrix ◦ Square matrix with main diagonal 1 otherwise 0 ◦ Numbers: I
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