polyEval()
(list,expr), (list,list2)
Interpret list as the coefficients of a polynomial
in descending degree, and return the polynomial
evaluated for expr or each element of list2.
PopUp itemList,var
Display a pop-up menu with the character
strings in itemList, wait for the press of a
number key, and store the number in var. If var
exists and contains a valid item number, that
item is the default choice. itemList must have at
least one character string.
PowerReg
xlist,ylist[,[freqList],[catlLst],[catincList]]
Calculate power regression and update all
statistics variables. First four arguments must
be variable names or c1-c99. Last argument
need not be a variable name and cannot be
c1-c99. All lists except catincList must have
equal dimension. The regression equation is y =
ax
b
.
Prgm
Prgm : block : EndPrgm
Required instruction that identifies the first line
of a TI-Basic program.
product(list [,start[,end]])
Return the product of the elements of list, from
start to end.
(matrix ,[start[,end]])
Return row vector whose elements are the
product of the column elements of matrix. start
and end specify a row range.
Prompt var1[,var2][,var3]...
Display one prompt for each argument on the
Program I/O screen. The prompt is the variable
name suffixed with "?". The expression entered
for each prompt is stored in the variable.
propFrac(rationalNumber)
Return rationalNumber as an integer and
fraction with the same sign, where the fraction
denominator is greater than the numerator.
(rationalExpr,var)
Return rationalExpr as a sum of proper ratios
and polynomial in var. The degree of var in each
ratio denominator is greater than the degree in
the numerator. Similar powers of var are
collected, and the terms and powers are sorted
with respect to var.
(rationalExpr)
Return a proper fraction expansion with respect
to the most main variable. The polynomial
coefficients are then made proper with respect
to their most main variable, and so on.
PtChg x,y
xList,yList
Display Graph screen and reverse pixel nearest
to window coordinates (x,y)
PtOff x,y
xList,yList
Display Graph screen and turn off pixel nearest
window coordinates (x,y).
PtOn x,y
xList,yList
Display Graph screen and turn on pixel nearest
window coordinate (x,y).
PtTest()
(x,y), (xList,yList)
Return True if the pixel nearest window
coordinates (x,y) is on, otherwise return False.
PtText string,x,y
Display Graph screen and place string with the
upper-left corner of the first character at the
pixel nearest window coordinates (x,y)
PxlChg row, col
rowList,colList
Display Graph screen and reverse the pixel at
pixel coordinates (row,col) or (rowList,colList)
PxlCrcl row,col,r [,drawMode]
Display Graph screen and draw circle with
radius r pixels and center at pixel coordinates
(row,col).
If drawMode = 1, draw the circle (default).
If drawMode = 0, turn off the circle.
If drawMode = -1, invert pixels along the circle .
PxlHorz row[,drawMode]
Display Graph Screen and draw horizontal line
at pixel coordinate row.
If drawMode = 1, draw the line (default).
If drawMode = 0, turn the line pixels off.
If drawMode = -1, invert the line pixels.
15 - 16
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