A-8 Tables and Reference Information
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 8 of 58
Function or Instruction/
Arguments Result Key or Keys/
Menu or Screen/Item
End Identifies end of For(,
If-Then-Else, Repeat, or While
loop.
†
CTL
7:End 16-12
Eng Sets engineering display mode. † z
Eng 1-10
Equ4String(Y= var,Strn)Converts the contents of a Y=
var to a string and stores it in
Strn.
y [CATALOG]
Equ4String( 15-7
expr(string)Converts string to an
expression and executes it.
y [CATALOG]
expr( 15-7
ExpReg [Xlistname,
Ylistname,freqlist,regequ]
Fits an exponential regression
model to Xlistname and
Ylistname with frequency
f
reqlist, and stores the
regression equation to regequ.
…
CALC
0:ExpReg
12-26
ExprOff Turns off the expression
display during TRACE.
† y [FORMAT]
ExprOff 3-14
ExprOn Turns on the expression
display during TRACE.
† y [FORMAT]
ExprOn 3-14
Ücdf(lowerbound,
upperbound,
numerator df,
denominator df)
Computes the Û distribution
probability between
lowerbound and upperbound
for the specified numerator df
(degrees of freedom) and
denominator df.
y [DISTR]
DISTR
9:Ûcdf(
13-32
Fill(value,matrixname)Stores value to each element in
matrixname.
MATH
4:Fill( 10-13
Fill(value,listname)Stores value to each element in
listname.
y [LIST]
OPS
4:Fill( 11-11
Fix # Sets fixed-decimal mode for #
of decimal places.
† z
0123456789
(select one) 1-10
Float Sets floating decimal mode. † z
Float 1-10