Casio CLASSWIZ CG Software User's Manual page 222

Category Grouped Item List
Note the following points concerning the syntax of functions and commands, except those in the Unit
Conversions category.
• If the natural input syntax and line input syntax are different for a function, the natural input syntax is shown
first, followed by the line input syntax.
• Anything that is optional in a syntax is enclosed in square brackets ([ ]). With the syntax ∫( f (x),a,b[,tol]), the
tol argument can be omitted, resulting in ∫( f (x),a,b).
Note
• The categories listed in this section and the functions, commands, app variables,
included in each category are presented in the order they appear when [Country] > [International] is
selected in the System app.
• Regardless of the model (fx-CG100 or fx-1AU GRAPH) or configuration, items included in C > [All]
are the same. All items listed in this manual are displayed in alphabetical order.
* Items included in C > [Variable Data] (input/output variables used in an app)
Function Analysis
1st Derivative (d/dx) d/dx(,)
Uses approximate calculation to determine the first-order differential coefficient of f x at x = a.
Syntax: d
( f (x))|
x = a
dx
Not allowed within this syntax: d/dx, d
d
3
Example: ( f (x + 4x
dx
Precautions
• When f x is a trigonometric function, make sure to select the following for the angle unit: S >
[Angle] > [Radian].
• Inaccurate results and errors can be caused by any one of the following:
- Discontinuous points in x values
- Extreme changes in x values
- Inclusion of the local maximum point and local minimum point in x values
- Inclusion of the inflection point in x values
- Inclusion of indifferentiable points in x values
- Calculation results approaching zero
2
2nd Derivative (d /dx
Uses approximate calculation to determine the second-order differential coefficient of f x at x = a.
2
Syntax: d
( f (x))|
x = a
2
dx
The items that are not allowed within this syntax and precautions are the same as those for d/dx.
Integration (∫) ∫(,,)
Uses approximate calculation to determine the integral of f x at a ≤ x ≤ b . This function returns a positive
value when f x is in the positive range and a negative value when f x is in the negative range (Example:
− 4dx = 7 − 4dx = - 5
3 2
2 2
∫ x ; ∫ x
2 1
3
b
Syntax: ∫ f (x)dx ∫( f (x),a,b[,tol])
a
• For tol , input the allowable error (tolerance) range. Default: 1 × 10
Not allowed within this syntax: d/dx, d
+ 3x + 4dx = 404
5
2
Example: ∫ 2x
1
d/dx( f (x),a)
2
2
, ∫dx , Σ, FMin, FMax, Solve, RndFix
/dx
2
+ x − 6))| = 52
x = 3
2 2 2
) d /dx (,)
2 2
d /dx ( f (x),a)
).
3
2
2
, ∫dx , Σ, FMin, FMax, Solve, RndFix
/dx
3
-5
if omitted and for natural input.
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and symbols