Casio CLASSWIZ CG Software User's Manual page 223

Precautions
• When f x is a trigonometric function, make sure to select the following for the angle unit: S >
[Angle] > [Radian].
• Because numerical integration is used, large error may result in calculated integration values due to
the content of f x , positive and negative values within the integration interval, or the interval being
integrated. (Examples: When there are parts with discontinuous points or abrupt change. When the
integration interval is too wide.) In such cases, dividing the integration interval into multiple parts
and then performing calculations may improve calculation accuracy.
Summation (Σ) Σ(,,,)
Obtains the sum for a specified range of f x .
b
Syntax: ∑ ( f (x)) ∑( f (x),x,a,b[,n]) a , b , n = integers, a < b
x=a
• x can be any alpha variable. n specifies the step interval. Default: 1 if omitted and for natural input.
Not allowed within this syntax: d/dx, d
6
2
Example: ∑ (x − 3x + 5) = 55
x=2
Solve Equation (SolveN) SolveN()
Obtains multiple solutions of an equation.
Syntax: SolveN( f x [= right side] [, x ] [,lower limit,upper limit])
• If [=right side] is omitted, f x = 0 is assumed. Specify any alpha variable for [ ,x ] and use the same variable
for f x . If [, x ] is omitted, the variable x is used.
• Up to 10 solutions are returned in list form.
• "No Solution" is returned if no solution exists.
• If a solution other than one(s) provided might exist, the message "More solutions may exist. " appears on
the display.
Not allowed within this syntax: d
2
Example: SolveN(x − 5x − 6) = {-1,6}
Solve Equation (Solve) Solve(,)
Approximates a single solution for f x = 0. This function has the same functionality as the Equation app's
"Using Solver" (page 116).
Syntax: Solve( f x ,initial estimate [,lower limit,upper limit])
Not allowed within this syntax: d
Remainder of Integer÷Integer Rmdr
Obtains the remainder when an integer is divided by another integer.
Syntax: dividend Rmdr divisor
Example: 17 Rmdr 7 = 3
Integer Part of Int÷Int Int÷
Obtains the quotient of an integer divided by another integer.
Syntax: dividend Int÷ divisor
Example: 17 Int÷ 7 = 2
Simplification ISimp
Reduces a fraction to its lowest terms. With the Calculate application, use the settings below.
S > [Simplify] > [Manual]
Use one of the syntaxes below for ISimp.
Syntax 1: FractionISimp
Automatically reduces the fraction in the argument by dividing by the smallest prime number that
can be divided. The prime number and the result of the reduction are shown on the display.
Syntax 2: FractionISimp n
2
2
/dx , ∫dx , Σ, FMin, FMax, Solve, RndFix
2
2
/dx , Σ, FMin, FMax, Solve
2
2
/dx , Σ, FMin, FMax, Solve
S > [Complex Mode] > [Real]
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