Appendix A: Functions and Instructions 572
coshL1 (value)Returns hyperbolic
arccosine of a real number,
expression, or list.
y N
coshL1(
CubicReg [Xlistname,
Ylistname,freqlist,
regequ]
Fits a cubic regression
model to Xlistname and
Ylistname with frequency
freqlist, and stores the
regression equation to
regequ.
…
CALC
6:CubicReg
cumSum(list)Returns a list of the
cumulative sums of the
elements in list, starting
with the first element.
y 9
OPS
6:cumSum(
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.
y >
MATH
0:cumSum(
dayOfWk(year,month,
day)Returns an integer from 1
to 7, with each integer
representing a day of the
week. Use dayOfWk( to
determine on which day of
the week a particular date
would occur. The year must
be 4 digits; month and day
can be 1 or 2 digit.
y N
dayOfWk(
1:Sunday
2:Monday
3:Tuesday...
F
unction or
Instruction/Arguments
Result Key or
Keys/Menu or
Screen/Item