Hp Prime Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 395)

100

101

Functions and commands 391

harmonic_division With three points and a variable as arguments, returns four

points that are in a harmonic division. With three lines and a

variable as arguments, returns four lines that are in a

harmonic division.

harmonic_division(Pnt or Line,Pnt or Line,Pnt

or Line,Var)

has Returns 1 if a variable is in an expression, and returns 0

otherwise.

has(Expr,Var)

Example:

has(x+y,x) gives 1

head Returns the first element of a given vector, sequence or string.

head(Vect or Seq or Str)

Example:

head(1,2,3) gives 1

Heaviside Returns the value of the Heaviside function for a given real

(i.e. 1 if x>=0, and 0 if x<0).

Heaviside(Real)

Example:

Heaviside(1) gives 1

hexagon Draws a hexagon of side AB in the plane ABP. The other four

corners of the hexagon are named according to the variables

given in the third, fourth, fifth and sixth arguments.

hexagon(Pnt or Cplx(A),Pnt or

Cplx(B),[Pnt(P)],[Var(C)],[Var(D)],[Var(E)],[

Var(F)])

Example:

hexagon(0,6) draws a regular hexagon whose first two

vertices are at (0, 0) and (6, 0)

homothety Returns a point A1 such that vect(C,A1)=k*vect(C,A).

homothety(Pnt(C),Real(k),Pnt(A))

Example:

homothety(GA,2,GB) creates a dilation centered at

point A that has a scale factor of 2. Each point P on

geometric object B has its image P’ on ray AP such that

AP’=2AP.

1 2 ... 390 391 392 393 394 395 396 397 398 399 400 ... 607 608

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Hp Prime Graphing Calculator Manuel d'utilisateur Page 395

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