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← Indicates continuation of a range smaller than a in the inequality
x<a, or a range less than or equal to a in x≤a.
→ Indicates continuation of a range greater than a in the inequality
x>a or a range greater than or equal to a in x≥a.
Indicates that this value itself (in the case of an equation) or
inclusion of this value (in the case of an inequality).
Indicates non-inclusion of this value (in the case of an
inequality).
(2) x-axis. This shows the center and either end values.
(3) Shows the equations or inequalities of the currently selected number
line (the number line displayed in bold). To display a different number
line expression, use
line whose expression you want to view.
6. To change the expression, display the number line graph screen and
then press
.
• This returns to the expression registration screen. You can change
only the values of a registered expression, or you can re-register
another type of expression. For information about how to do this, see
"Modifying a Registered Expression" (page
7. To exit Number Line, press
• This clears the registered expression and returns to the Math Box
menu.
Important!
• If you change the Angle Unit setting on the SETTINGS menu, all expressions currently
registered in Number Line will be deleted.
Modifying a Registered Expression
To modify a registered expression
Example:
To change the expression in Line C (-2.0<x≤-0.5) to -1.5<x≤0.5
1. On the expression registration screen, select Line C and then press
2. On the menu that appears, select [Edit] and then press
3. Input -1.5 for a and 0.5 for b.
((-))1
5
0
4. After making sure that [Confirm] is selected, press
To re-register another type of expression
Example:
To change the expression in Line A (x≤-1.5) to x=-1.5
1. On the expression registration screen, select Line A and then press
2. On the menu that appears, select [Define New] and then press
3. On the expression type list that appears, select [x=a] and then press
and
to move the bolding to the number
on the expression registration screen.
5
88
88).
.
.
.
.
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