Casio fx9750GII - MISCELLANEOUS FUNCTIONS (Continued); Factorisation Checking and Matrix;Matrices (RUN-MAT)

Example 2
Factorise x
2
+ 3x - 40 Result
Enter in the equation in bracketed and the expanded form
X, θ ,T
x
2
+
3
X, θ ,T
- 4 0
SHIFT
.
(
X, θ ,T
+ 8
) (
X, θ ,T
- 5
)
then
EXE
Matrix/Matrices [in RUN-MAT]
This area of the calculator utilises all of Matrix addition, subtraction and multiplication properties.
Transformation Geometry can be investigated or linear programming, up to 8 variables i.e. A
matrix size of order 8 x 8. You can edit up to 26 different matrices of differing order and there is
an automatic space for the answer matrix.
Dene the matrices in the usual way, rstly its order rows x columns. Then enter the matrix
values. You ‘do’ the operations in RUN-MAT mode. Via [F1] dene the matrix dimensions, enter
in the values of each matrix then to +, - or × open OPTN then [F2] for the Matrix operations.
Factorisation checking [in RUN-MAT] cont.
The result 1 indicates correct factorisation.
The result 0 indicates incorrect factorisation.
Example
Calculate [2 - 8] x
[
1 -3 4
]
Result
0 -1 3
Enter the dimensions into Mat A and then the rst values
F1 EXE 2 EXE 3 EXE
Dimensions entered
1 EXE - 3 EXE 4 EXE 0 EXE - 1 EXE
3 EXE
then
EXIT
Example cont.
Enter the second dimensions into Mat C and then the second values
EXE 1 EXE 2 EXE
Dimensions entered
2 EXE - 8 EXE
Complete the calculation
EXIT EXIT
OPTN
F2 F1
ALPHA
In x F1
ALPHA
X, θ ,T
then
EXE
MISCELLANEOUS FUNCTIONS