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Fractions in equations – HP 32SII User Manual

Page 87

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Fractions

5–9

File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm

and 9. The accuracy indicator turns off if the fraction matches the decimal
representation exactly. Otherwise, the accuracy indicator stays on, (See
"Accuracy Indicators" earlier in this chapter.)

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 for
the previous example.)

56

Œ

3

Œ

4

H

D

+

Stores the distance in D.

6

p

S

+

The sections are a bit wider than
9

7

/

16

inches.

z

I

+

Rounds the width to this value.

6

y

+

Width of six sections.

K

D

„

.

+

The cumulative round off error.

{

x

{

} 8

.

+

Clears flag 8.

z

Š

. )

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.