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Using the Action Menu

upercent

Function: Returns the percentage of each element in a list, the sum of which is assumed to be 100.

Syntax: percent (List [ ) ]

Example: To determine the percentage of each element in the list {1, 2, 3}

Menu Item: [Action][List-Calculation][percent]

upolyEval

Function: Returns a polynomial arranged in the descending order of powers, so coefficients correspond sequentially to each element in the input list.

Syntax: polyEval (List [,Exp/List] [ ) ]

Example: To create a second degree polynomial with the coefficients {1, 2, 3}

Menu Item: [Action][List-Calculation][polyEval]

• “x” is the default when you omit “[,Exp/List]”.

usequence

Function: Returns the lowest-degree polynomial that represents the sequence expressed by the input list. When there are two lists, this command returns a polynomial that maps each element in the first list to its corresponding element in the second list.

Syntax: sequence (List-1[, List-2] [,variable] [ ) ]

• “x” is the default when you omit “[, variable]”.

Example: To determine a polynomial for a sequence expressed by the list {3, 5, 7, 9}

Menu Item: [Action][List-Calculation][sequence]

Example: To determine a polynomial that maps each element in the list {1, 3, 5, 7} to its corresponding element in the list {0, –1, 2, –3}.

Menu Item: [Action][List-Calculation][sequence]

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