Crossword

5. An operator which flips a matrix over its diagonal
6. A matrix having all its elements in a single line
9. Another matrix that,when multiplied by the given matrix,yields the multiplicative identity
10. A square matrix in which every element except principal diagonal elements is zero
11. a11=4,a12=2,a21=9,a22=7.Calculate the determinant
12. Row reduction algorithm for solving linear equations systems
13. a11=1,a12=2,a13=4,a21=3,a22=5,a23=8,a31=7,a32=6,a33=9.Calculate the rank of matrix

1. The system has an infinite number of solutions.What is this system called?
2. A single numerical value which is used when calculating the inverse or when solving systems of linear equations
3. A rectangular array of numbers(or other mathematical objects)
4. The sum of the products of the corresponding entries of the two sequences of numbers(in vectors)
7. A matrix that has an equal number of rows and columns
8. The length of the vectors