User Guide

Appendix A: Functions and Instructions 363
Input [variable]
Input ["text",variable]
Prompts for value to store to variable.
† 
I/O
1:Input
Input [Strn,variable] Displays Strn and stores entered value to variable.
†

I/O
1:Input
inString(string,substring
[,start])
Returns the character position in string of the first
character of substring beginning at start.
y N
inString(
int(value)
Returns the largest integer  a real or complex number,
expression, list, or matrix.

NUM
5:int(
GInt(pmt1,pmt2
[,roundvalue])
Computes the sum, rounded to roundvalue, of the interest
amount between pmt1 and pmt2 for an amortization
schedule.
Π1:Finance
CALC
A:
GInt(
invNorm(area[,m,s])
Computes the inverse cumulative normal distribution
function for a given area under the normal distribution
curve specified by
m and s.
y =
DISTR
3:invNorm(
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(
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
:IS>(variable,value)
:commandA
:commands
Increments variable by 1; skips commandA if variable>value.
†

CTL
A:IS>(
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
LabelOn Turns on axes labels.
† y .
LabelOn
Lbl label Creates a label of one or two characters.
†

CTL
9:Lbl
F
unction or
Instruction/Arguments Result
Key or
Keys/Menu or
Screen/Item