HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 497)

100

101

polygonplot

Used in the Geometry app Symbolic view. Given an n × m matrix, draws and connects the points (xk, yk),

where xk is the element in row k and column 1, and yk is the element in row k and column j (with j xed for

k=1 to n rows). Thus, each column pairing generates its own gure, resulting in m–1 gures.

polygonplot(Matrix)

Example:

polygonplot draws two gures, each with three points connected by segments.

polygonscatterplot

Used in the Geometry app Symbolic view. Given an n × m matrix, draws and connects the points (xk, yk),

where xk is the element in row k and column 1, and yk is the element in row k and column j (with j xed for

k=1 to n rows). Thus, each column pairing generates its own gure, resulting in m— gures.

polygonscatterplot(Matrix)

Example:

polygonscatterplot draws two gures, each with three points connected by segments.

polynomial_regression

Given a set of points dened by two lists, and a positive integer n, returns a vector containing the coeicients

, a

n–1

... a

) of y = a

+ a

n–1

+ ... a

*x + a

), the nth order polynomial which best approximates the given

points.

polynomial_regression(List1, List2, Integer)

Example:

polynomial_regression({1, 2, 3, 4}, {1, 4, 9, 16},3) returns [0 1 0 0]

POLYROOT

Returns the zeros of the polynomial given as a vector of coeicients.

POLYROOT(Vector)

Example:

POLYROOT([1 0 -1]) returns {-1, 1}

potential

Returns a function whose gradient is the vector eld dened by a vector and a vector of variables.

potential(Vector1, Vector2)

Example:

potential([2*x*y+3,x^2-4*z,-4*y],[x,y,z]) returns x2*y+3*x-4*y*z

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