Error Messages - Casio Geometry User Manual

7. Error Messages

Attempting to perform some inappropriate operation in the Geometry Mode will cause one of
the error messages described below to appear. Use this table as a reference to fi nd out what
you need to do when an error message appears.
When you see
this message:
First select a
segment.
First select a
line and point.
First select
2 points or a
segment.
First select
the applicable
fi gure.
First select 2
segments.
Too Many
Objects! Work
memory cleared.
Invalid
Measurement
7-1
Error Messages
It means this:
You are attempting to construct a
perpendicular bisector without fi rst
selecting a line segment.
You are attempting to construct a
perpendicular or parallel without
fi rst selecting a line segment and
point.
You are trying to construct a
midpoint without fi rst selecting two
points or a line segment.
• You are trying to construct a
point of intersection without fi rst
selecting two lines.
• You are trying to execute an Add
Animation or Replace Animation
command without fi rst selecting
the required object.
• You are trying to execute an Add
Table command without fi rst
selecting the required object.
You are trying to construct
an angle bisector without fi rst
selecting two line segments.
Work memory became full.
You are attempting to use the
Expression command to input
an expression that contains a
measurement that does not exist.
20060601
So you need to do this:
Select the required object(s) and
then try again.
Delete objects you no longer need
or open a new fi le.
Check to make sure that the
expression you are inputting
contains only measurements that
are currently on the screen.