K first derivative calculations – Casio FX-CG10 User Manual
Page 73
2-27
• The lower limit and upper limit specify the range of the solution. You can input a value or an
expression as the range.
• The following functions cannot be used within any of the arguments.
Solve(,
d
2
/ d
x
2
(, FMin(, FMax(,
Σ (
Up to 10 calculation results can be displayed simultaneously in ListAns format.
• The message “No Solution” is displayed if no solution exists.
• The message “More solutions may exist.” is displayed when there may be solutions other
than those displayed by SolveN.
Example
To solve
x
2
– 5
x
– 6 = 0
K4(CALC) 5(SolveN)
vx-fv-g)w
J
k First Derivative Calculations
[OPTN] - [CALC] - [ d / d
x
]
To perform first derivative calculations, first display the function analysis menu, and then input
the values using the syntax below.
K4(CALC)2(d/d
x
)
f
(
x
)
e
a
or
4(MATH)4(d/d
x
)
f
(
x
)
e
a
K4(CALC) 2( d / d
x
)
f
(
x
) ,
a
)
a
is the point for which you want to determine the first derivative.
The derivative is defined as:
d/dx ( f (x) a)
⇒
f (a)
dx
d
d/dx ( f (x) a)
⇒
f (a)
dx
d
f (a +
Ax) – f (a)
f (a) = lim –––––––––––––
Ax
Ax→0
'
f (a +
Ax) – f (a)
f (a) = lim –––––––––––––
Ax
Ax→0
'