Casio fx-9860G AU PLUS Manuale di avvio rapido - Pagina 10

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Casio fx-9860G AU PLUS Manuale di avvio rapido
Example 4:
Calculating a definite integral
To perform the following calculation
• Use the radian angle unit.
(RUN • MAT)
(SET UP)
(Math)
(Rad)
dx
(CALC)
(
)
( )
Matrix Calculations
Example 1:
To perform the following calculation
2
5
3
Assign
to Mat A, and
–1
2
0
On the { MAT} menu, select [Mat A], specify the matrix dimensions (2 rows
3 columns), and then enter the elements.
(RUN • MAT)
(SET UP)
(Line)
( MAT)
E-8
Actual solution: 12
2
x
dx
sin(
)
0
Actual solution: 1
4
2
2
5
3
=
5
1
–1
2
0
0
3
4
2
to Mat B.
5
1
0
3
In the same way, select [Mat B], specify the matrix dimensions (3 rows
columns), and then enter the elements.
Perform the following calculation: Mat A
(MAT)
(Mat)
(A)
(Mat)
(B)
Example 2:
To determine whether a solution exists for the following simultaneous
equations
{
{
x
x
y
y
2
2
–
–
= 3
= 3
–4
–4
x
x
+ 2
+ 2
y
y
= 5
= 5
On the { MAT} menu, select [Mat A], specify the matrix dimensions (2 rows
3 columns), and then enter the elements.
(RUN • MAT)
(SET UP)
(Line)
( MAT)
Use the Rref function to determine whether a solution exists for the equations.
• To enter the Rref function, press [OPTN] - [MAT] - [Rref].
2
Mat B.
33 18
Actual result:
6
0