Operation Manual

Appendix A: Functions and Instructions 353
4Eff(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
Equ4String(
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. Fraction and or decimal
may be an approximation.
t ^
4: 4 F 3 4 D
or

NUM
B:
4 F 3 4 D

FRAC
3:
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)
F
unction or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item