User Manual

20090601
2-8-45
Using the Action Menu
S
exchange
Function: Swaps the right-side and left-side elements of an equation or inequality.
Syntax: exchange(Eq/Ineq/List [
) ]
• Ineq (inequality) includes the “
x
” (not equal to) relational operator.
Example: To swap the left-side and right-side elements of 3 > 5
x
– 2
y
Menu Item: [Action][Equation/Inequality][exchange]
S
eliminate
Function: Solves one equation with respect to a variable, and then replaces the same
variable in another expression with the obtained result.
Syntax: eliminate(Eq/Ineq/List-1, variable, Eq-2 [
) ]
• Ineq (inequality) includes the “
x
” (not equal to) relational operator.
Example: To transform
y
= 2
x
+ 3 to
x
=, and substitute the result into 2
x
+ 3
y
= 5
Menu Item: [Action][Equation/Inequality][eliminate]
S
absExpand
Function: Divides an absolute value expression into formulas without absolute value.
Syntax: absExpand(Eq/Ineq [
) ]
• Ineq (inequality) includes the “
x
” (not equal to) relational operator.
Example: To remove the absolute value from
¦
2
x
– 3
¦
= 9
Menu Item: [Action][Equation/Inequality][absExpand]
S
andConnect
Function: Combines two equations or inequalities into a single expression.
Syntax: andConnect(Eq/Ineq-1, Eq/Ineq-2 [
) ]
• Ineq (inequality) includes the “
x
” (not equal to) relational operator.
Example: To rewrite
x
> –1 and
x
< 3 into a single inequality
Menu Item: [Action][Equation/Inequality][andConnect]
S
getRight
Function: Extracts the right-side elements of an equation or inequality.
Syntax: getRight(Eq/Ineq/List [
) ]
• Ineq (inequality) includes the “
x
” (not equal to) relational operator.
Example: To extract the right side elements of
y
= 2
x
2
+ 3
x
+ 5
Menu Item: [Action][Equation/Inequality][getRight]