HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 420)

100

101

Page 12-39

• Press @ERASE @DRAW to see the surface plot. This time the bulk of the plot is

located towards the right –hand side of the display.

• Press @CANCL to return to the PLOT WINDOW environment.

• Press $ , or L@@@OK@@@, to return to normal calculator display.

Try also a Wireframe plot for the surface z = f(x,y) = x

• Press „ô, simultaneously if in RPN mode, to access the PLOT SETUP

window.

• Press ˜ and type ‘X^2+Y^2’ @@@OK@@@.

• Press @ERASE @DRAW to draw the slope field plot. Press @EDIT L@)MENU @LABEL

to see the plot unencumbered by the menu and with identifying labels.

• Press LL@)PICT to leave the EDIT environment.

• Press @CANCL to return to the PLOT WINDOW environment. Then, press

$ , or L@@@OK@@@, to return to normal calculator display.

Ps-Contour plots

Ps-Contour plots are contour plots of three-dimensional surfaces described by

z = f(x,y). The contours produced are projections of level surfaces z =

constant on the x-y plane. For example, to produce a Ps-Contour plot for the

surface z = x

, use the following:

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HP 48gII Graphing Calculator Manual do Utilizador Página 420

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