20021201
2-7-14
Using the Action Menu
u
u
u
u
u
gcd
Function: Returns the greatest common denominator of two expressions.
Syntax: gcd (Exp/List-1, Exp/List-2 [ ) ]
Example: To obtain the greatest common denominator of
x
+ 1 and
x
2
– 3
x
– 4
Menu Item: [Action][Calculation][gcd]
u
u
u
u
u
lcm
Function: Returns the least common multiple of two expressions.
Syntax: lcm (Exp/List-1, Exp/List-2 [ ) ]
Example: To obtain the least common multiple of
x
2
– 1 and
x
2
+ 2
x
– 3
Menu Item: [Action][Calculation][lcm]
u
u
u
u
u
rangeAppoint
Function: Finds an expression or value that satisfies a condition in a specified range.
Syntax: rangeAppoint (Exp/Eq/List, start value, end value [ ) ]
• When using an equation (Eq) for the first argument, input the equation using the syntax
Var = Exp. Evaluation will not be possible if any other syntax is used.
Example: To find the expression(s) in the list {
x
=
π
,
x
= 2
π
,
x
= 3
π
} that belong(s) to the
closed range 0
<
x
<
5
Menu Item: [Action][Calculation]
[rangeAppoint]
Example: To find the “
n
” that satisfies the condition 0
<
n
×
π
<
5
Menu Item: [Action][Calculation][rangeAppoint]
u
u
u
u
u
denominator
Function: Extracts the denominator of a fraction.
Syntax: denominator (Exp/List [ ) ]
Example: To extract the denominator of the fraction (
y
– 2)/(
x
+ 1)
Menu Item: [Action][Calculation][denominator]
