Texas Instruments TITANIUM TI-89 - Manual (Page 847)

Appendix A: Functions and Instructions 847
NewPlot CATALOG
NewPlot n , type , xList [ , [ yList ], [ frqList ], [ catList ],
[ includeCatList ], [ mark ] [, bucketSize ]]
Creates a new plot definition for plot number n .
type specifies the type of the graph plot.
1 = scatter plot
2 = xyline plot
3 = box plot
4 = histogram
5 = modified box plot
mark specifies the display type of the mark.
1 = è (box)
2 = × (cross)
3 = + (plus )
4 = é (square)
5 = ø (dot)
bucketSize is the width of each histogram
“bucket” ( type = 4), and will vary based on the
window variables xmin and xmax . bucketSize must
be >0. Default = 1.
Note: n can be 1–9. Lists must be variable names
or c1–c99 (columns in the last data variable
shown in the Data/Matrix Editor), except for
includeCatList , which does not have to be a
variable name and cannot be c1–c99.
FnOff ¸ Done
PlotsOff
¸
Done
{1,2,3,4}!L1 ¸ {1 2 3 4}
{2,3,4,5}!L2 ¸ {2 3 4 5}
NewPlot 1,1,L1,L2,,,,4 ¸ Done
Press ¥ % to display:
NewProb CATALOG
NewProb
Performs a variety of operations that let you
begin a new problem from a cleared state
without resetting the memory.
• Clears all single-character variable names
( Clear a–z ) in the current folder, unless the
variables are locked or archived.
• Turns off all functions and stat plots (
FnOff
and PlotsOff ) in the current graphing mode.
• Perfoms
ClrDraw , ClrErr , ClrGraph ,
ClrHome , ClrIO , and ClrTable .
NewProb ¸ Done
nInt() MATH/Calculus menu
nInt( expression1, var, lower, upper )
⇒ ⇒ ⇒ ⇒ expression
If the integrand expression1 contains no variable
other than var , and if lower and upper are
constants, positive ˆ, or negative ˆ, then nInt()
returns an approximation of ‰ ( expression1 , var ,
lower , upper ) . This approximation is a weighted
average of some sample values of the integrand
in the interval
lower<var<upper .
nInt( e ^(ë x^2),x,ë 1,1) ¸
1.493
...
The goal is six significant digits. The adaptive
algorithm terminates when it seems likely that
the goal has been achieved, or when it seems
unlikely that additional samples will yield a
worthwhile improvement.
A warning is displayed ( “Questionable
accuracy”) when it seems that the goal has not
been achieved.
nInt(cos(x),x,ë p,p+1н л 12) ¸
л 1.041 ... н л 12
‰ (cos(x),x,ë p,p+10^(л 12)) ¸
л sin(
1
1000000000000)
ans(1)¥ ¸ л 1.н л 12