Casio fx-9750G PLUS - Manual (Page 136)

108
3. Input the values.
bew (H=14)
aw (V=0)
cw (T=2)
j.iw (G=9.8)
4. Press f to move the highlighting to V = 0.
5. Press 6 (SOLV) to obtain the solution.
• An error occurs if you input more than one equals sign.
• “Lft” and “Rgt” indicate the left and right sides that are calculated using the
approximate value. The closer the difference between these two values is to
zero, the greater the accuracy of the result.
Solve Calculations
The solution of the function is approximated using Newton’s method.
u u u u u
Newton’s method
This method is based on the assumption
that
f (x) can be approximated by a linear
expression within a very narrow range.
First, a starting value (predicted value)
x
o
is
given. Using this starting value as a base,
approximate value
x
1
is obtained, and then
the left side and right side calculation
results are compared. Next, approximate
value
x
1
is used as the initial value to
calculate the next approximate value x
2
.
This procedure is repeated until the
difference between the left side and right
side calculated values is less than some
minute value.
• Solutions obtained using Newton’s method may include errors.
• To check results, plug them into the original expression and perform the
calculation.
7 - 4
Solve Calculations
Equation
Solution