• If a result is a complex number, the real part of the first solution
appears first. Press !=(Re⇔Im) to toggle the display between
the real part and imaginary part of a solution.
x
x
3
2
– 2
NNN1(EQN) e3
Matrix Calculations (MAT)
Use the MAT Mode to perform calculations involving matrices of up to
3 rows by 3 columns. To perform a matrix calculation, you first assign
data to special matrix variables (MatA, MatB, MatC), and then use the
variables in the calculation as shown in the example below.
Note: Matrix calculations can use up to two levels of the matrix stack.
Squaring a matrix, cubing a matrix, or inverting a matrix uses one
stack level.
To assign
1 1
perform the following calculations:
MatB),
1. Press NNN2(MAT) to enter the MAT Mode.
2. Press 14(MAT) 1(Dim) 1(A).
3. Input the dimensions of MatA: 2 = 2 =.
• This will display the Matrix Editor for input
of the elements of the 2 × 2 matrix you
specified for MatA.
4. Input the elements of MatA: 2 = 1 = 1 = 1 =.
5. Perform the following key operation: 14(MAT) 1(Dim) 2(B)
2 = 2 =.
• This will display the Matrix Editor for input of the elements of the
2 × 2 matrix you specified for MatB.
6. Input the elements of MatB: 2 =- 1 =- 1 = 2 =.
x
–
+ 2 = 0
1 =- 2 =- 1 = 2 =
2 1
to MatA and
1 1
2 1
2 –1
+
1 1
–1 2
!=(Re⇔Im)
(fx-570MS/991MS only)
2 –1
–1 2
2 1
1 1
(MatA+MatB)
E-24
(x2=)
c
(x2=) −0.75
(x1=)
(x2=)
c
(x3=)
c
to MatB, and then
2 –1
×
–1 2
Mat A
(
Mat A
11
Shows the row number
and column number of the
element. (Example: MatA
indicates row 2, column 3
of MatA.)
0.25
i
2
–1
1
(MatA×
m×n
)
m?
0.
0.
23
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