Appendix A: Functions and Instructions
359
4
Eff(
nominal rate
,
compounding periods
)
Computes the effective interest rate.
Œ
1:Finance
CALC
C:
4
Eff(
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
4
String(Y=
var
,Str
n
)
Converts the contents of a
Y=
var
to a string and stores it in
Str
n
.
y N
Equ
4
String(
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
Ü
cdf(
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:
Ü
cdf(
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
Function or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item