HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 483)

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head

Returns the rst element of a given vector, sequence or string.

head(Vector) or head(String) or head(Obj1, Obj2,…)

Example:

head(1,2,3) gives 1

Heaviside

Returns the value of the Heaviside function for a given real number (i.e. 1 if x>=0, and 0 if x<0).

Heaviside(Real)

Example:

Heaviside(1) gives 1

horner

Returns the value of a polynomial P(a) calculated with Horner's method. The polynomial may be given as a

symbolic expression or as a vector of coeicients.

horner(Polynomial,Real)

Examples:

horner(x^2+1,2) returns 5

horner([1,0,1],2) returns 5

hyp2exp

Returns an expression with hyperbolic terms rewritten as exponentials.

hyp2exp(Expr)

Example:

hyp2exp(cosh(x)) returns

iabcuv

Returns [u,v] such that au+bv=c for three integers a, b, and c. Note that c must be a multiple of the greatest

common divisor of a and b for there to be a solution.

iabcuv(Intgra, Intgrb, Intgrc)

Example:

iabcuv(21,28,7) gives [-1,1]

ibasis

Given two matrices, interprets them as two vector spaces and returns the vector basis of their intersection.

ibasis(Matrix1, Matrix2)

Example:

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