I

i

 

i

Returns the complex number i.

identity(

 

identity(dimension)

Returns the identity matrix of dimension rows x dimension columns.

If

 

If condition:commandA:commands

If condition = 0 (false), skips commandA.

If
Then
End

 

If:conditionThen:commandsEnd:commands

Executes commands from Then to End if condition = 1 (true).

If
Then
Else
End

 

If:conditionThen:commandsElse:commandsEnd:commands

Executes commands from Then to Else if condition = 1 (true); from Else to End if condition = 0 (false).

imag(

 

imag(value)

Returns the imaginary (non-real) part of a complex number or list of complex numbers.

 

invBinom(

invBinom(area,trial,p)

The inverse binomial cumulative distribution function results in the minimum number of successes, such that the cumulative probability for that minimum number of successes ≥ the given cumulative probability (area). If more information is needed, also find the binomcdf for the result from invBinom( as shown below for a full analysis.

Details:

Assume the toss of a fair coin 30 times. What is the minimum number of heads you must observe such that the cumulative probability for that number of observed heads is at least 0.95?

The results on the screen first show that the minimum number of successes to obtain at least the given cumulative probability of 0.95 is 19. Next, the cumulative probability for up to 19 is computed using binomcdf( and is approximately 0.9506314271 which meets the criteria of 0.9506314271≥0.95

Alternate Method:

Set Y1=binomcdf(30,0.5,X) and use the table of values (starting at 0 and increment by 1) to find when the cumulative probability is at or just above the given cumulative probability. This gives you a view of all values to make decisions. For this example, search in the table to find the cumulative probability just larger than 0.95. Again, the number of successes is 19.

 

IndpntAsk

 

IndpntAsk

Sets table to ask for independent-variable values.

IndpntAuto

 

IndpntAuto

Sets table to generate independent-variable values automatically.

Input

 

Input

Displays graph.

Input

 

Input [variable]

Input ["text",variable]

Prompts for value to store to variable.

Input

 

Input [Strn,variable]

Displays Strn and stores entered value to variable.

inString(

 

inString(string,substring[,start])

Returns the character position in string of the first character of substring beginning at start.

int(

 

int(value)

Returns the largest integer  a real or complex number, expression, list, or matrix.

GInt(

 

GInt(pmt1,pmt2[,roundvalue])

Computes the sum, rounded to roundvalue, of the interest amount between pmt1 and pmt2 for an amortization schedule.

invNorm(

 

invNorm(area[,µ,σ,tail])

tail [catalog]: LEFT, CENTER, RIGHT

Computes the inverse cumulative normal distribution function for a given area under the normal distribution curve specified by m and s.. The optional argument tail can be LEFT (-∞,-a), CENTER [-a,a] or RIGHT (a, ∞) for Real a.

The tokens LEFT, CENTER and RIGHT can be found in [catalog].

LEFT

 

LEFT

LEFT is a tail argument for the invNorm( command where the optional argument tail can be LEFT (-∞,-a), CENTER [-a,a] or RIGHT (a, ∞) for Real a.

See also invNorm(.

RIGHT

 

RIGHT

RIGHT is a tail argument for the invNorm( command where the optional argument tail can be LEFT (-∞,-a), CENTER [-a,a] or RIGHT (a, ∞) for Real a.

See also invNorm(.

CENTER

 

CENTER

CENTER is a tail argument for the invNorm( command where the optional argument tail can be LEFT (-∞,-a), CENTER [-a,a] or RIGHT (a, ∞) for Real a.

See also invNorm(.

LEFT

RIGHT

CENTER

 

invT(

 

invT(area,df)

Computes the inverse cumulative student-t probability function specified by degree of freedom, df for a given area under the curve.

iPart(

 

iPart(value)

Returns the integer part of a real or complex number, expression, list, or matrix.

irr(

 

irr(CF0,CFList[,CFFreq])

Returns the interest rate at which the net present value of the cash flow is equal to zero.

isClockOn

 

isClockOn

Identifies if clock is ON or OFF. Returns 1 if the clock is ON. Returns 0 if the clock is OFF.

IS>(

 

:IS>(variable,value)
:commandA
:commands

Increments variable by 1; skips commandA if variable>value.