Hp Prime Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 142)

100

101

138 Geometry

finger completes the move and deselects the point. In this case

there is no way to cancel the move unless you have activated

keyboard shortcuts, which provides you with an undo

function. (Shortcuts are described on page 147.)

Create a

derivative point

The derivative of a graph at any point is the slope of its

tangent at that point. We’ll now create a new point that will

be constrained to point B and whose ordinate value is the

derivative of the graph at point B. We’ll constrain it by forcing

its x coordinate (that is, its abscissa) to always match that of

point B, and its y coordinate (that is, its ordinate) to always

equal the slope of the tangent at that point.

16. To define a point in

terms of the attributes of

other geometric objects,

you need to go to

Symbolic view:

Note that each object

you have so far created

is listed in Symbolic view. Note too that the name for an

object in Symbolic view is the name it was given in Plot

view but prefixed with a “G”. Thus the graph—labeled A

in Plot view—is labeled GA in Symbolic view.

17. H ig h l ig h t GC and tap .

When creating objects that are dependent on other

objects, the order in which they appear in Symbolic view

is important. Objects are drawn in Plot view in the order

in which they appear in Symbolic view. Since we are

about to create a new point that is dependent on the

attributes of GB and GC, it is important that we place its

definition after that of both GB and GC. That is why we

made sure we were at the bottom the list of definitions

before tapping . If our new definition appeared

higher up in Symbolic view, the point we are about to

create wouldn’t be drawn in Plot view.

18. Tap and choose Point > point

You now need to specify the x and y coordinates of the

new point. The former is to be constrained to abscissa of

1 2 ... 137 138 139 140 141 142 143 144 145 146 147 ... 615 616

Commentaires sur ces manuels

Pas de commentaire

Hp Prime Graphing Calculator Manuel d'utilisateur Page 142

Commentaires sur ces manuels

Produits connexes et manuels pour PDAs Hp Prime Graphing Calculator