checkTmr(starttime)

Returns the number of seconds since you used startTmr to start the timer. The starttime is the value displayed by startTmr.

c2cdf(lowerbound,upperbound,df)

Computes the c2distribution probability between lowerbound and upperbound for the specified degrees of freedom df.

c2pdf(x,df)

Computes the probability density function (pdf) for the c2 distribution at a specified x value for the specified degrees of freedom df.

c2LTest(observedmatrix,expectedmatrix[,drawflag,color#])

Performs a chi-square test. drawflag=1 draws results; drawflag=0 calculates results.

Color#: 10 - 24 or color name pasted from [vars] COLOR.

c2GOF‑Test(observedlist,expectedlist,df [,drawflag,color#])

Performs a test to confirm that sample data is from a population that conforms to a specified distribution.

Color#: 10 - 24 or color name pasted from [vars] COLOR.

Circle(X,Y,radius[,color#,linestyle#])

Draws a circle with center (X,Y) and radius with specified

Color#: 10 - 24 or color name pasted from [vars] COLOR.

linestyle#: 1-2.

CLASSIC

Displays inputs and outputs on a single line, such as 1/2+3/4.

Clear Entries

Clears the contents of the Last Entry storage area.

ClockOff

Turns off the clock display in the mode screen.

ClockOn

Turns on the clock display in the mode screen.

ClrAllLists

Sets to 0 the dimension of all lists in memory.

ClrDraw

Clears all drawn elements from a graph or drawing.

ClrHome

Clears the home screen.

ClrListlistname1[,listname2, ...,listname n]

Sets the dimension of one or more listnames to 0.

ClrTable

Clears all values from the table.

conj(value)

Returns the complex conjugate of a complex number or list of complex numbers.

CoordOff

Turns off cursor coordinate value display.

CoordOn

Turns on cursor coordinate value display.

cos(value)

Returns cosine of a real number, expression, or list.

cosL1(value)

Returns arccosine of a real number, expression, or list.

cosh(value)

Returns hyperbolic cosine of a real number, expression, or list.

coshL1 (value)

Returns hyperbolic arccosine of a real number, expression, or list.

CubicReg [Xlistname,Ylistname,freqlist,regequ]

Fits a cubic regression model to Xlistname and Ylistname with frequency freqlist, and stores the regression equation to regequ.

cumSum(list)

Returns a list of the cumulative sums of the elements in list, starting with the first element.

cumSum(matrix)

Returns a matrix of the cumulative sums of matrix elements. Each element in the returned matrix is a cumulative sum of a matrix column from top to bottom.