Texas Instruments TI-89 Tip List page 494

vectorName1[,vectorName2][,vectorName3],...
Sort the elements of the first argument in
ascending order. Sort elements of optional
arguments so that the element positions match
the new positions of the elements in the first
argument. All arguments must be names of lists
or vectors, and have equal dimensions.
SortD
listName1[,listName2][,listName3],...
vectorName1[,vectorName2][,vectorName3],...
Same as SortA, but sort the elements in
descending order.
▶ ▶ ▶ ▶ Sphere
vector ▶Sphere
Display 3-element row or column vector in
spherical form [ρ∠θ∠φ]. θ is the angle from the
x-axis to the projection of the vector in the xy
plane, and φ is the angle from the z-axis to the
vector.
stdDev(list[,freqList])
Return the sample (not population) standard
deviation of the elements of list. freqList
elements specify the frequency of the
corresponding elements of list. Both lists must
have at least two elements, and the same
number of elements.
(matrix[,freqMatrix])
Return row vector of the sample standard
deviations of the column elements of matrix.
freqMatrix elements specify the frequency of
corresponding matrix elements. matrix must
have at least two rows.
StoGDB GDBvar
Create a Graph database variable (GDB) with
the current settings for:
Graphing mode; Y= functions; Window
variables; Graph format settings (1- or 2-Graph
setting; split-screen and ratio settings if 2-Graph
mode); Angle mode; Real/Complex mode; Initial
conditions (Sequence or Diff Equations mode);
Table flags; tblStart, „tbl, tblInput
Use RclGDB GDBvar to restore the graph
environment.
Stop
Stop program execution.
StoPic picVar[,pxlRow,pxlCol][,width,height]
Display the Graph screen and copy a
rectangular area of the display to picVar.
pxlRow and pxlCol specify the upper left corner
of the copied area, the default is 0,0. width and
height specify the pixel dimensions of the area
and default to the width and height of the current
graph screen.
Store
See →
String(expr)
Simplify expr and return the result as a string.
Style eqNum,styleString
Set graph function eqNum to use the graphing
property styleString. eqNum must be 1 - 99 and
the function must exist. styleString must be one
of: "Line", "Dot", "Square", "Thick", "Animate",
"Path", "Above" or "Below". Only some styles
are valid for particular graph modes:
Function: all styles
Parametric/Polar: line, dot, square, thick,
animate, path
Sequence: line, dot, square, thick
3D: none
Diff Equations: line, dot, square, thick, animate,
path.
subMat()
(matrix[,startRow][,startCol][,endRow][,endCol])
Return specified submatix of matrix. Defaults
are startRow = 1, startCol = 1, endRow = last
row, endCol = last column
sum(list[,start[,end]])
Return sum of list elements from start to end.
(matrix[,start[,end]])
Return row vector whose elements are the
sums of the columns of matrix. start and end
specify start and end rows.
switch([n])
Return the number of the active window, and
switch the active window based on n. Window 1
is top or left, window 2 is right or bottom. With
no argument, switch the current window and
return the previous active window number. n is
ignored if a split screen is not displayed.
Otherwise, for
n = 0: return the current window
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