Texas Instruments TITANIUM TI-89 User Manual page 406

From the Graph screen, you can switch to the other graph format styles by
Note:
and then set
Style = IMPLICIT PLOT
pressing:
Í
However, to return to IMPLICIT PLOT press:
8 Í
• The viewing angle is set initially so that you are viewing the plot by looking down the
z axis. You can change the viewing angle as necessary.
• The plot is shown in expanded view. To switch between expanded and normal view,
press p.
• The Labels format is set to OFF automatically.
Style
z1(x,y)=x
IMPLICIT
PLOT
3D Graphing
.
2 2
x –y =4
2 2
–y –4
sin(x)+cos(y)= e(x
z1(x,y)=sin(x)+cos(y)–e(x
ù
y)
ù
y)
406