Texas Instruments TI-80 Manual Book page 74

Converting
Decimals and
Fractions
úFRAC
8DEC
3-10 Fractions
8FRAC (convert to fraction,
decimal value to its fraction equivalent and displays it. The
decimal may be a number, expression, or list.
In MANSIMP mode,
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
or if the denominator of the equivalent fraction is greater than
1000, the decimal equivalent is returned.
8FRAC
The form of the
display format. For example,
is selected or
aÀbºc
If the decimal value for
fractions, but it is still stored internally in decimal form.
8DEC (convert to decimal,
fraction value to its decimal form and displays it.
8FRAC
decimal
8DEC
fraction
AUTOSIMP & aÀbºc
MANSIMP & aÀbºc
Both 8FRAC and 8DEC
expression. A ! (§) instruction, however, can follow them.
FRACTION
8FRAC
first attempts to return a fraction
mode. If the value cannot be converted
result depends on the current fraction
1.25 8FRAC
if is selected.
5à4 bºc
8FRAC is a list, the list is displayed as
FRACTION , item 5) converts a
AUTOSIMP & bºc
MANSIMP & bºc
are valid only at the end of an
, item 4) converts a
returns 1 if
1à4