1. 3/6/2016Agenda Using your calculator for matricesUsing your calculator for matrices –Inputting a matrix –Determinants –Row Operations –Solving Systems (REF, RREF) ClassworkClasswork INSERT HERE HomeworkHomework INSERT HERE

2. 3/6/2016 Matrices By Calculator

3. 3/6/2016 By the end of the day: You should know how to: Input a matrix to your calculatorInput a matrix to your calculator Use your calculator to:Use your calculator to: –Find a determinant –Perform Row Operations –Solve a system

4. 3/6/2016WARNING!!!!! Half of your test will be done with a calculator and half of it will be done without a calculator. Do NOT rely solely on using your calculator.

5. 3/6/2016 Inputting a Matrix To Input a Matrix Into Your Calculator: Hit “Matrix” Select “Edit” Select Matrix to Edit Enter the order of the matrix Enter the entries of the matrix Select “Quit”

6. 3/6/2016 Finding the Determinant To Find the Determinant of a Matrix: Hit “Matrix” Select “Math” Select “det( “ Tell calculator which matrix to find the determinant of (From “NAMES”) Must be a square matrix

7. 3/6/2016 Row Operations To do row operations using the calculator RowSwap(matrix, row, row)RowSwap(matrix, row, row) *row(constant, matrix, row)*row(constant, matrix, row) *row+(constant, matrix, row mult, row add)*row+(constant, matrix, row mult, row add) Row+(matrix, row add, row replaced)Row+(matrix, row add, row replaced)

8. 3/6/2016 Row Operations To do row operations using the calculator RowSwap(matrix, row, row)RowSwap(matrix, row, row) *row(constant, matrix, row)*row(constant, matrix, row) *row+(constant, matrix, row mult, row add)*row+(constant, matrix, row mult, row add) Row+(matrix, row add, row replaced)Row+(matrix, row add, row replaced)

9. 3/6/2016 Row Operations To do row operations using the calculator RowSwap(matrix, row, row)RowSwap(matrix, row, row) *row(constant, matrix, row)*row(constant, matrix, row) *row+(constant, matrix, row mult, row add)*row+(constant, matrix, row mult, row add) Row+(matrix, row add, row replaced)Row+(matrix, row add, row replaced)

10. 3/6/2016 Row Operations To do row operations using the calculator RowSwap(matrix, row, row)RowSwap(matrix, row, row) *row(constant, matrix, row)*row(constant, matrix, row) *row+(constant, matrix, row mult, row add)*row+(constant, matrix, row mult, row add) Row+(matrix, row add, row replaced)Row+(matrix, row add, row replaced)

11. 3/6/2016 Solving Systems To Solve a System: Enter the augmented matrix in Matrix AEnter the augmented matrix in Matrix A Display Matrix on Home ScreenDisplay Matrix on Home Screen Determine How to turn 1,1 entry into a 1.Determine How to turn 1,1 entry into a 1. Verify that it workedVerify that it worked Store the Matrix in BStore the Matrix in B Repeat to get 0s & 1sRepeat to get 0s & 1s

12. 3/6/2016 ref & rref Once you have shown me you know how to do the process, I will allow you to use the short cut: Go to “MATRIX”Go to “MATRIX” Scroll to “MATH”Scroll to “MATH” Select “rref(”Select “rref(” Enter the MatrixEnter the Matrix Hit EnterHit Enter

13. 3/6/2016 It’s the end of the day: Do you know how to: Input a matrix to your calculator?Input a matrix to your calculator? Use your calculator to:Use your calculator to: –Find a determinant? –Perform Row Operations? –Solve a system?

14. 3/6/2016Homework Study: INSERT HERE Do: Read & Take Notes: INSERT HERE

15. 3/6/2016 Resource Credits Justin Bohannon Justin Bohannon Justin Bohannon