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1. Integration Calculations

3-2 Solve Calculations

To solve calculations, first display the function analysis menu, and then input the

values shown in the formula below to determine root

P.64

With Solve calculations, the root of a function is determined using Newton's method.

u u u u u Newton's Method

This method is based on the assumption that

expression within a very narrow range.

First, a starting value (predicted value)

base, approximate value

tion results are compared. Next, approximate value

calculate the next approximate value

ence between the left side and right side calculated values is less than some minute

value.

u u u u u To perform solve calculations

Input the function

f(x)

1(Solve)

Initial estimate value

Example

To calculate the value of root

the initial estimated value is

upper limit is

+ 7

f(x)

AK4(CALC)1(Solve)

cvx+hv-j,

)

Upper limit

Lower limit

is given. Using this starting value as a

is obtained, and then the left side and right side calcula-

. This procedure is repeated until the differ-

b = 1

– 9 = 0

values in the function

f(x)

can be approximated by a linear

is used as the initial value to

in the following formula when

n = 1

, the lower limit is

2 3 4 5 6

f(x)

a = 0

, and the