Appendix A: Functions and Instructions 586
invT(area,df)Computes the inverse
cumulative student-t
probability function
specified by degree of
freedom, df for a given area
under the curve.
y =
DISTR
4:invT(
iPart(value)Returns the integer part of
a real or complex number,
expression, list, or matrix.
NUM
3:iPart(
irr(CF0,CFList[,CFFreq])Returns the interest rate at
which the net present value
of the cash flow is equal to
zero.
Π1:Finance
CALC
8:irr(
:IS>(variable,value)
:commandA
:commands
Increments variable by 1;
skips commandA if
variable>value.
†
CTL
A:IS>(
isClockOn Identifies if clock is ON or
OFF. Returns 1 if the clock
is ON. Returns 0 if the
clock is OFF.
y N
isClockOn
Ùlistname Identifies the next one to
five characters as a user-
created list name.
y 9
OPS
B:Ù
LabelOff Turns off axes labels. † y .
LabelOff
F
unction or
Instruction/Arguments
Result Key or
Keys/Menu or
Screen/Item