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EL-9900 Graphing Calculator
Creating a Graph of Experimental Data
Graph the results of an experiment and examine the trends.
(Example: examined data relating to water vapour pressure and temperature.)
FLOWCHART
PROGRAMME LIST
Graph plot
Start
Enter statistical data using
statistics feature before
executing program.
Counter
Data as coordinates
(starting point and
finishing point).
Line drawn between
set coordinates.
Y
N
End
ClrG
Rem DRAWING SD
2
-
Stats L1,L2
Rem RANGE
xmin Xmin
xmax Xmax
ymin Ymin
ymax Ymax
(Xmax-Xmin) / 10 Xscl
(Ymax-Ymin) / 10 Yscl
Rem BROKEN LINE
For I, 1, n-1, 1
L1(I) X
L2(I) Y
L1(I+1) Z
L2(I+1) W
Line(X,Y,Z,W)
NEXT
Wait
End
DRAWLOOP
I = I + 1
Graph plotted using
automatic scaling.
Setting of
coordinates
of line
Display of line
Whether or not lines of no.
of data drawn judged.
Repeated until lines drawn
by the no. of data.
PARAMETERS
Name of parameter
I
X
Z
Content
counter
x of line starting point
x of line finishing point
Name of parameter
Y
W
Content
y of line starting point
y of line finishing point
*n = number of statistical data
I < N
Title : XY GRAPH
18