Texas Instruments TI-73 EXPLORER - Manual (Page 295)

Appendix A: Function and Instruction Reference
289
73A-ENG.DOC AppxA: Function/Instruction Reference, English Julie Hewlett Revised: 07/29/98 1:10 PM Printed:
05/19/99 9:03 AM Page 289 of 36
ExpReg [XList,YList,freq,Y
n
]
- v
C A L C
Fits the equation (y=ab N ) to XList and YList with
frequency list, freq, and stores the regression equation
to Y
n
. XList, YList, and freq (if specified) must have
the same number of elements.
freq is the frequency of occurrence for each
corresponding data point in XList. If freq is omitted,
all values are used once.
Defaults for XList and YList are
L 1
and
L 2
.
{1,3,4,5,5,7,8,9}ÜL 3 b Done
{1,4,2,3,4,6,7,9}ÜL 4 b Done
Set Decimal mode to 2.
ExpReg L 3 ,L 4 ,Y b
Select ZStandard.
ExprOff
ExprOn
† - g
WINDOW
format settings; turns off or on the
expression display in the top left corner while tracing
a graph.
8 F / D
>
Converts a fraction to its decimal equivalent or
changes a decimal to its fractional equivalent, if
possible.
3
4
8F/D b .75
.758F/D b
3
4
Fill( number,list )
- |
Replaces each element in existing list with specified
real number, number.
{3,4,5}ÜL 1 b {3 4 5}
Fill(8,L 1 ) b Done
L 1 b {8 8 8}
Fix #ofplaces
† .
Sets fixed Decimal mode setting for # of decimal
places. #ofplaces must be an integer between 0 and 9.
It can be an expression which equals an appropriate
integer.
Fix 3 b Done
p b 3.142
Float
† .
Selects the
Float
Decimal Notation mode setting.
Displays a decimal with a maximum of 10 digits,
including the sign and decimal point.
Float b Done
p b 3.141592654