Casio fx-3650P Programming Guide

16
09 Approximate solutions to Equations
of higher degree
( Newton’s method )
Newton’s method is used to calculate approximate solutions to the equation . For a
initial value , the following recurrence relation gives successive approximate solutions:
It should be noted that the series calculated above may not always converge, depending on
the initial value .
Program
？→ Ｘ：Ｌｂｌ １：Ｘ －（ ）÷（ ）→ Ｘ：
Ｘ Ｇｏｔｏ １ ＜ 40 STEP ＞
Execution Example:
Find solutions to the equation . (Solutions are and )
To stop program, press the key.
To calculate for other functions, enter the apropriate function in the part indicated by a single
underline, and the derivative in the part with double underline.
f
x() 0=
x
1
x
i 1+
x
i
fx
i
()
f
′ x
i
()
------------–=
x
1
ON
MODE MODE MODE
1
PRGM
MODE
1
COMP
1
P1
Ｘ
３
－２ Ｘ
２
－２Ｘ＋４
３Ｘ
２
－４Ｘ－２
x
3
2x
2
–2x–4+0=2± 2
Prog
1
S A
D R P1
P1
P2 P3 P4 G
1
EXE
Disp
S A
D R P1
P1
P2 P3 P4 G
EXE
Disp
S A
D R P1
P1
P2 P3 P4 G
EXE EXE
Disp
S A
D R P1
P1
P2 P3 P4 G
AC
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Casio fx-3650P Specifications

General

Type	Scientific
Form factor	Pocket
Housing material	Plastic
Digits	12 digits
Digit comma separator	Yes
Display number of lines	2 lines
Digit comma separator format	Standard (3 digits)
Battery type	LR44
Number of batteries supported	1

Weight and Dimensions

Weight	100 g
Dimensions (WxDxH)	78 x 157 x 12 mm