Casio fx-CG50 - Page 559

16-19
Determining the Relationship of Straight Lines or Planes (Not available
with the fx-CG50 AU, fx-CG20 AU)
You can determine the combinations below for the relationship of two 3D graphs.
Line-line ... Intersect/right-angle intersect/parallel/skew relation/same line
Line-plane ... Intersect/perpendicular intersect/parallel/line on a parallel plane
Plane-plane ... Intersect/perpendicular intersect/parallel/same plane
To determine line-plane relationship
1. Use the Line template and Plane template to register the straight line and plane functions
below.
Straight line:
Plane:
2. Press 6(DRAW) to draw the 3D graph.
3. Press !5(G-SOLVE)3(RELATION).
This displays the line-plane relationship. •
4. To delete the relationship display, press J.
When there are three straight lines or planes, you can change how they are combined by
pressing 1(Next)/2(Back).
To determine relationship, you must use the Line template or Plane template to draw two or
more 3D graphs.
k
•
•
•
u
•
•
=
−1
−2
1
1
1
0
+ t
→
r
=
−1
−2
1
1
1
0
+ t
→
r
1
2
0
1
1
0
0
1
1
+ t+ s
=
→
r
1
2
0
1
1
0
0
1
1
+ t+ s
=
→
r