3-10 Fractions
8003ENG.DOC TI-80, Chp 3, ENG, 135x205mm Bob Fedorisko Revised: 02/15/01 9:52 AM Printed: 02/15/01
9:53 AM Page 10 of 10
8FRAC (convert to fraction, FRACTION, item 4) converts a
decimal value to its fraction equivalent and displays it. The
decimal may be a number, expression, or list.
In MANSIMP mode, 8FRAC first attempts to return a fraction
in terms of 10ths, 100ths, or 1000ths. If this is not possible,
8FRAC converts the decimal to its fraction equivalent as it
would in AUTOSIMP mode. If the value cannot be converted
or if the denominator of the equivalent fraction is greater than
1000, the decimal equivalent is returned.
The form of the 8FRAC result depends on the current fraction
display format. For example, 1.25 8FRAC returns 1 1à4 if
aÀbºc is selected or 5à4 if bºc is selected.
If the decimal value for 8FRAC is a list, the list is displayed as
fractions, but it is still stored internally in decimal form.
8DEC (convert to decimal, FRACTION, item 5) converts a
fraction value to its decimal form and displays it.
decimal8FRAC
fraction8DEC
AUTOSIMP & aÀbºc AUTOSIMP & bºc
MANSIMP & aÀbºc MANSIMP & bºc
Both 8FRAC and 8DEC are valid only at the end of an
expression. A ! (§) instruction, however, can follow them.
Converting
Decimals and
Fractions
úFRAC
8DEC