Advertisement
Note 1G • POINTS Program (continued)
e. If you enter the wrong coordinates, repeat step d and enter new values.
f. If you enter the wrong coordinates a second time, the calculator will
display the correct answer.
g. Press
to display another point.
ENTER
h. When you are ready to quit the program, enter 0 and press
Errors
If you get
, select
ERR:SYNTAX
. To change your screen back to a full screen, press
ENTER
highlight
.
Full
Clean-up
If you quit
without using the
POINTS
left with a split screen. Press
. Press
GridOff
[STAT PLOT]
2nd
that is turned on, and press
PROGRAM:POINTS
3
W : L b l 1
Í
F u l l : P l o t s O f f
F n O f f : G r i d O n
r a n d I n t ( – 9 , 9 , 1 ) / 2
Í
r a n d I n t ( – 6 , 6 , 1 ) / 2
Í
P l o t 1 ( S c a t t e r , L ⁄ , L ¤ , ' )
ZDecimal:Pause
L b l 2 : H o r i z
O u t p u t ( 4 , 1 , " U S E 0 T O Q U I T " )
Repeat W 1
I n p u t " P O I N T : ( " , S t r 1
i n S t r i n g ( S t r 1 , " , " )
If C = 0 : G o t o 9
i n S t r i n g ( S t r 1 , " ) " )
I f P = 0 : l e n g t h ( S t r 1 ) + 1
s u b ( S t r 1 , 1 , C - 1 )
S t r 2
Í
s u b ( S t r 1 , C + 1 , P - C - 1 )
S t r i n g ˛ E q u ( S t r 2 , Y ¤ )
S t r i n g ˛ E q u ( S t r 3 , Y ‹ )
F n O f f
L ⁄ ( 1 )
X : L ¤ ( 1 )
Y
Í
Í
18
Discovering Algebra Calculator Notes for the Texas Instruments TI-83 and TI-83/84 Plus
and start the program over by pressing
1:Quit
option in the program, you might be
QUIT
and select
. Press
Full
MODE
(
)
, or press
PlotsOff
4
ENTER
.
ENTER
L ⁄
L ¤
C
Í
P
Í
P
Í
S t r 3
Í
.
ENTER
and
MODE
and select
[FORMAT]
2nd
, arrow to any plot
Y
I f Y ¤ = X and Y ‹ = Y : T h e n
D i s p "
R I G H T ! "
0
W:Pause
Í
E l s e : I f W = 1
T h e n
D i s p " N O , T H E "
D i s p " C O R R E C T P O I N T I S "
O u t p u t ( 4 , 1 , "
( " )
O u t p u t ( 4 , 6 , X )
7 + ( X < 0 ) + 2 ( f P a r t ( X ) 0 )
O u t p u t ( 4 , H , " , " )
O u t p u t ( 4 , H + 1 , Y )
H + 2 + ( Y < 0 ) + 2 ( f P a r t ( Y ) 0 )
O u t p u t ( 4 , K , " ) " )
2
W:Pause
Í
E l s e : 1
W
Í
D i s p " T R Y AGAIN"
E n d : E n d : E n d
G o t o 1
L b l 9 : F u l l : G r i d O f f : P l o t s O f f
D i s p " P R E S S E N T E R " , " T O R E P L A Y . " , " " ,
" P R E S S 1 " , " A N D E N T E R " , " T O Q U I T . "
TI-83 and TI-83/84 Plus
H
Í
K
Í
©2007 Key Curriculum Press
Advertisement
