User Guide

Appendix A: Functions and Instructions 359
4
Eff(nominal rate,
compounding periods)
Computes the effective interest rate.
Π1:Finance
CALC
C:
4Eff(
Else
See If:Then:Else
End Identifies end of For(, If-Then-Else, Repeat, or While
loop.
†

CTL
7:End
Eng Sets engineering display mode.
† z
Eng
Equ
4String(Y= var,Strn)
Converts the contents of a Y= var to a string and stores it in
Strn.
y N
Equ
4String(
expr(string) Converts string to an expression and executes it.
y N
expr(
ExpReg [Xlistname,
Ylistname,freqlist,regequ]
Fits an exponential regression model to Xlistname and
Ylistname with frequency freqlist, and stores the regression
equation to regequ.
…
CALC
0:ExpReg
ExprOff Turns off the expression display during TRACE.
†
y .
ExprOff
ExprOn Turns on the expression display during TRACE.
† y .
ExprOn
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
0:Ücdf(
4 F 3 4 D
Converts an answer from a fraction to a decimal or from a
decimal to a fraction.
t ^
4: 4 F 3 4 D
or

NUM
8:
4 F 3 4 D
Fill(value,matrixname) Stores value to each element in matrixname.
y >
MATH
4:Fill(
Fill(value,listname) Stores value to each element in listname.
y 9
OPS
4:Fill(
Fix # Sets fixed-decimal mode for # of decimal places.
†
z
0123456789
(select one)
Float Sets floating decimal mode.
†
z
Float
F unction or
Instruction/Arguments Result
Key or
Keys/Menu or
Screen/Item