5–8 Fractions
In an equation or program, the RND function does fractional rounding if
Fraction–display mode is active.
Example:
Suppose you have a 56
3
/
4
–inch space that you want to divide into six equal
sections. How wide is each section, assuming you can conveniently measure
1
/
16
–inch increments
?
What's the cumulative roundoff error
?
Keys: Display: Description:
16
|
Sets up fraction format for
1
/
16
–inch increments. (Flags 8
and 9 should be the same as fo
the previous example.)
56
3
4
I
D
+
Stores the distance in D.
6
q
+
S
The sections are a bit wider than
9
7
/
16
inches.
{J
+
Rounds the width to this value.
6
z
+
Width of six sections.
L
D
. +
The cumulative round off error.
|y
{
} 8
. +
Clears flag 8.
{
.)
Turns off Fraction–display mode.
Fractions in Equations
When you're typing an equation, you can't type a number as a fraction. When an
equation is displayed, all numeric values are shown as decimal values —
Fraction–display mode is ignored.
When you're evaluating an equation and you're prompted for variable values,
you may enter fractions — values are displayed using the current display format.
See chapter 6 for information about working with equations.
