Casio fx-5800P - Manual (Page 66)

E-65
a
11
a
12
a
13
–1
a
21
a
22
a
23
a
31
a
32
a
33
=
a
22
a
33
– a
23
a
32
– a
12
a
33
+ a
13
a
32
a
12
a
23
– a
13
a
22
– a
21
a
33
+ a
23
a
31
a
11
a
33
– a
13
a
31
– a
11
a
23
+ a
13
a
21
a
21
a
32
– a
22
a
31
– a
11
a
32
+ a
12
a
31
a
11
a
22
– a
12
a
21
a
11
a
22
a
33
+ a
12
a
23
a
31
+ a
13
a
21
a
32
– a
13
a
22
a
31
– a
12
a
21
a
33
– a
11
a
23
a
32
Important!
• Matrix inversion is supported for a non-zero square matrix only.
• Use the
!)( x –1
) key to input “
–1
”.
Example: To invert the matrix
1 –2
5 0
.
This example assumes that Mat C contains
1 –2
5 0
.
Mat C
!)( x –1
) E
A Squaring a Matrix
You can use the procedure shown below to square a matrix.
Important!
Use the
x key to specify the squaring operation.
Example: To square the matrix
1 –2
5 0
.
This example assumes that Mat C contains
1 –2
5 0
.
Mat C
xE
Sequence Calculations (RECUR)
To perform the example operations in this section, fi rst select RECUR ( N6) as the
calculation mode.
k
Sequence Calculation Overview
You can use either of the two following sequence types to create a sequence table.
1
a
n
Type Sequence
With this sequence type, you input the general term of the sequence ( a
n
= f ( n )), along
with a sequence start value and end value.
2 a
n +1
Type Sequence
With this sequence type, you input the recursion formula for two-term recursion ( a
n +1
=
f ( a
n
)), along with a sequence start value and end value.