Home » Archimedes archive » Archimedes World » AW Readers Services Special FebMar 92.adf » !ArcWorld/Goodies/Graphs/!ReadMe
!ArcWorld/Goodies/Graphs/!ReadMe
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Archimedes World » AW Readers Services Special FebMar 92.adf |
| Filename: | !ArcWorld/Goodies/Graphs/!ReadMe |
| Read OK: | ✔ |
| File size: | 2E6A bytes |
| Load address: | FFFFFF42 |
| Exec address: | 45194479 |
File contents
!Graph
Overview
This Risc OS application produces graphs of mathematical functions. It
is fully multitasking and obeys Acorns rules for Risc Os applications.
It can graph cartesian, parametric and polar functions.
Axes can be manually set or automatically calculated.
Multiple graphs of any one type can be produced on the same set of
axes.
Zooming of cartesian functions is possible by using the mouse to
define the zoom area. This is useful for solving equations.
The coordinates of the pointer can be displayed for cartesian and
parametric graphs. This is useful for identifying the position of
features of interest.
Functions and axes values can be saved to disc.
The graphs produced can be saved as a draw file for loading into !draw
for enhancement and for exporting to D.T.P. applications.
Functions are checked for errors before plotting.
Functions can be entered in true algebraic form.
A large number of inbuilt functions are provided such as hyperbolic
trig functions and a factorial function.
Operation in degrees or radians.
The displayed graph will be scaled instantly as the display window is
resized. This means that the full graph will be displayed irrespective
of the window size.
Help messages are produced if !help is installed.
Page 1
Loading
The application can be loaded in one of two ways.
1 Insert and mount the disc. Double click on the !graphs icon. This
will install the application on the right of the icon bar.
Clicking once with select will cause the graph window to be
opened.
2 Insert and mount the disc. Double click on a graph data file.
These can be identified by having f(x)= on their icon.
This will cause the application to load and the graph file to be
loaded. The graph icon will appear on the icon bar. There will be
a pause whilst the functions are evaluated. A window will open
and the graphs will be displayed.
A minimum of 200k must be available to load !graph
Main menu
The main menu can be popped up at any time by clicking menu whilst
over the graphs window.
The menu has the following options:-
1 Save data.
This allows the functions and axes ranges to be saved to disc.
Follow the arrow to the right of the menu. A standard Risc Os
save window will appear. Enter the file name in the text box or
change the existing name. Then either drag the file icon to a
directory viewer or, if a full path name exists in the text box
click on OK
2 Save graph
This saves the current graph, as displayed in the graph window,
as a draw file for loading into other applications such as !Draw
and D.T.P. The size of the graph saved does not depend upon the
window size. It may be rescaled within !draw.
Follow the arrow to the right of the menu. A standard Risc Os
save window will appear. Enter the file name in the text box or
change the existing name. Then either drag the file icon to a
directory viewer or, if a full path name exists in the text box
click on OK
Files saved in this form cannot be loaded back into !graph.
3 Coordinates
When selected this opens a small window which shows the current
coordinates of the tip of the pointer in the coordinate system of
the the current axes. This is not available with polar graphs and
only operates when the pointer is over the graph window. This may
be cancelled either by clicking on the close window icon for the
Page 2
coordinates window or by selecting it again from the menu.
4 Axes
This causes the axes window to be opened, or brought to the top.
The axes window contains information about the current values
being used for drawing the graph. It is also used to determine if
some of the values are to be calculated automatically. A value
may be entered by moving to the box containing a value and
entering the new value.
Shaded values may not be entered since these will be calculated
automatically.
Clicking on the Auto Yes/No icon switches between the automatic
calculation of axes or the manual entering of all ranges.
Minimum values should be less than maximum values otherwise. If
they are entered the wrong way around they will be swapped. If
they are equal they will be adjusted. Values are given to a
maximum of six places of decimals.
The automatic calculation of axes values means that
re-calculation time is somewhat longer. Automatic calculation may
give unpredictable results if the function goes to infinity in
the graphed region.
5 Functions
This allows the function which is to be graphed to be entered and
edited.
The long box is used to enter the function (see the section on
functions)
The plot option can be set to yes or no. It must be set to yes if
the graph is to be displayed.
Up to six cartesian and three polar and parametric functions can
be entered. Each function is numbered. The function displayed can
be changed by clicking on the left or right arrow. The box at the
top right indicates in which colour the function will be drawn.
6 Cartesian
This selects cartesian functions and axes. Other types are stored
internally. Any present cartesian functions are calculated and
displayed.
7 Polar
This selects polar functions and axes. Other types are stored
internally. Any present polar functions are calculated and
displayed.
8 Parametric
This selects parametric functions and axes. Other types are
stored internally. Any present parametric functions are
calculated and displayed.
9 Degrees
This selects between degrees and radian angular measure.
This may be ticked (to indicate degrees are to be used) or
unticked (to indicate the use of radians). Select changes the
state of the tick. (Default not ticked)
Page 3
10 Show axes
This selects between displaying and not displaying the axes. When
ticked the axes will be displayed. (Default is ticked)
Redrawing the graphs
Since the redrawing of a graph takes a little while (depending on the
complexity of the graph) the display is only recalculated when
required. To force re-calculation press select whist over the graph
window. The standard hour glass will be displayed whist re-calculation
takes place. Any regions of the graph where the function evaluations
are not possible (E.G. square roots of negative values) will result in
slower computation.
Loading a file
With the application loaded a graph data file may be loaded either
by:-
1 Double clicking on the file in a directory viewer.
2 Dragging the file and dropping it on the !graph icon on the icon
bar.
In both cases the graph data file will be loaded and the functions
recalculated. Any previous functions will be lost.
Functions
Cartesian functions are entered in terms of the variable x.
Polar and parametric functions are entered in terms of the variable t.
Functions can be entered in true algebraic form.
For example
cos 3x sin 2x
will be evaluated as (cos(3*x)) * (sin(2*x))
If in doubt about the order of evaluation add brackets to force
correct evaluation order. Functions may be entered in upper or lower
case and spaces are not important.
Help
By installing the application !help the program will give relevant
help depending upon the position of the mouse.
Page 4
Operators and functions used
+ Addition
- Subtraction
* Multiplication
/ Division
^ is used to raise to a power. EG x^3 for x cubed.
DIV The integer part of the division eg x DIV 5
MOD The remainder part of the division eg x MOD 5
INT The integer part of the following expression. eg INT x
SGN The sign of the expression. -1 for negative, 0 for zero 1
for positive.
ABS The absolute value of the following expression eg ABS x
PI The constant 3.14159265
RND A pseudo random number in the range 0 to 1
SQR The square root of the following expression eg SQR x
LN The natural logarithm of the following expression eg LN x
LOG The logarithm to base ten of the following expression. eg
LOG x
EXP e raised to the power of the expression. eg EXP x
FACT The factorial of the expression in brackets eg FACT6
COSH The hyperbolic cosine of the expression. eg COSHx
SINH The hyperbolic sine of the expression. eg SINHx
TANH The hyperbolic tangent of the expression. eg TANHx
ARCCOSH The inverse hyperbolic cosine of the expression. eg ARCCOSHx
ARCSINH The inverse hyperbolic sine of the expression. eg ARCSINHx
ARCTANH The inverse hyperbolic tangent of the expression. eg
ARCTANHx
The following take notice of the degree\radian mode selection.
SIN The sine of the expression eg SIN x
COS The cosine of the expression eg COS x
TAN The tangent of the expression eg TAN x
ASC The inverse sine (arc sine) of the expression eg ASC x
ACS The inverse cosine (arc cosine) of the expression eg ACS x
ATN The inverse tangent (arc tangent) of the expression eg ATN x
Zooming
When cartesian axes are being used it is possible to zoom in on an
area. Move to the bottom left of the boundary of the region to be
zoomed. Press adjust.
A bounding box will be drawn from where the pointer is to where the
pointer was when adjust was clicked.
Move to the top right of the area so that the bounding box contains
the area to be zoomed. Press adjust again.
Page 5
The graph will now be re-drawn with the new axes range.
Saving as a sprite
It is usually preferable to export the graph as a draw file, it may be
saved as a sprite by using the grab sprite option on !paint and
grabbing the graph from the window.
Page 6
Note
The file type 777 has been used for a graph data file.
A F Lane
3 Lansdowne Gardens
Hailsham
East Sussex
BN27 1LQ
February 1990
Page 7
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It . is f| 000000a0 75 6c 6c 79 20 6d 75 6c 74 69 74 61 73 6b 69 6e |ully multitaskin| 000000b0 67 20 61 6e 64 20 6f 62 65 79 73 20 41 63 6f 72 |g and obeys Acor| 000000c0 6e 73 20 72 75 6c 65 73 20 66 6f 72 20 52 69 73 |ns rules for Ris| 000000d0 63 20 4f 73 20 61 70 70 6c 69 63 61 74 69 6f 6e |c Os application| 000000e0 73 2e 20 0a 20 20 20 20 20 0a 20 20 20 20 49 74 |s. . . 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Zoomi| 000001d0 6e 67 20 6f 66 20 63 61 72 74 65 73 69 61 6e 20 |ng of cartesian | 000001e0 66 75 6e 63 74 69 6f 6e 73 20 69 73 20 70 6f 73 |functions is pos| 000001f0 73 69 62 6c 65 20 62 79 20 75 73 69 6e 67 20 74 |sible by using t| 00000200 68 65 20 6d 6f 75 73 65 20 74 6f 20 0a 20 20 20 |he mouse to . | 00000210 20 64 65 66 69 6e 65 20 74 68 65 20 7a 6f 6f 6d | define the zoom| 00000220 20 61 72 65 61 2e 20 54 68 69 73 20 69 73 20 75 | area. This is u| 00000230 73 65 66 75 6c 20 66 6f 72 20 73 6f 6c 76 69 6e |seful for solvin| 00000240 67 20 65 71 75 61 74 69 6f 6e 73 2e 20 0a 20 20 |g equations. . | 00000250 20 20 20 0a 20 20 20 20 54 68 65 20 63 6f 6f 72 | . The coor| 00000260 64 69 6e 61 74 65 73 20 6f 66 20 74 68 65 20 70 |dinates of the p| 00000270 6f 69 6e 74 65 72 20 63 61 6e 20 62 65 20 64 69 |ointer can be di| 00000280 73 70 6c 61 79 65 64 20 66 6f 72 20 63 61 72 74 |splayed for cart| 00000290 65 73 69 61 6e 20 61 6e 64 20 0a 20 20 20 20 70 |esian and . p| 000002a0 61 72 61 6d 65 74 72 69 63 20 67 72 61 70 68 73 |arametric graphs| 000002b0 2e 20 54 68 69 73 20 69 73 20 75 73 65 66 75 6c |. This is useful| 000002c0 20 66 6f 72 20 69 64 65 6e 74 69 66 79 69 6e 67 | for identifying| 000002d0 20 74 68 65 20 70 6f 73 69 74 69 6f 6e 20 6f 66 | the position of| 000002e0 20 0a 20 20 20 20 66 65 61 74 75 72 65 73 20 6f | . features o| 000002f0 66 20 69 6e 74 65 72 65 73 74 2e 20 0a 20 20 20 |f interest. . | 00000300 20 20 0a 20 20 20 20 46 75 6e 63 74 69 6f 6e 73 | . Functions| 00000310 20 61 6e 64 20 61 78 65 73 20 76 61 6c 75 65 73 | and axes values| 00000320 20 63 61 6e 20 62 65 20 73 61 76 65 64 20 74 6f | can be saved to| 00000330 20 64 69 73 63 2e 20 20 0a 20 20 20 20 20 0a 20 | disc. . . | 00000340 20 20 20 54 68 65 20 67 72 61 70 68 73 20 70 72 | The graphs pr| 00000350 6f 64 75 63 65 64 20 63 61 6e 20 62 65 20 73 61 |oduced can be sa| 00000360 76 65 64 20 61 73 20 61 20 64 72 61 77 20 66 69 |ved as a draw fi| 00000370 6c 65 20 66 6f 72 20 6c 6f 61 64 69 6e 67 20 69 |le for loading i| 00000380 6e 74 6f 20 21 64 72 61 77 20 0a 20 20 20 20 66 |nto !draw . f| 00000390 6f 72 20 65 6e 68 61 6e 63 65 6d 65 6e 74 20 61 |or enhancement a| 000003a0 6e 64 20 66 6f 72 20 65 78 70 6f 72 74 69 6e 67 |nd for exporting| 000003b0 20 74 6f 20 44 2e 54 2e 50 2e 20 61 70 70 6c 69 | to D.T.P. appli| 000003c0 63 61 74 69 6f 6e 73 2e 20 0a 20 20 20 20 20 0a |cations. . .| 000003d0 20 20 20 20 46 75 6e 63 74 69 6f 6e 73 20 61 72 | Functions ar| 000003e0 65 20 63 68 65 63 6b 65 64 20 66 6f 72 20 65 72 |e checked for er| 000003f0 72 6f 72 73 20 62 65 66 6f 72 65 20 70 6c 6f 74 |rors before plot| 00000400 74 69 6e 67 2e 20 0a 20 20 20 20 20 0a 20 20 20 |ting. . . | 00000410 20 46 75 6e 63 74 69 6f 6e 73 20 63 61 6e 20 62 | Functions can b| 00000420 65 20 65 6e 74 65 72 65 64 20 69 6e 20 74 72 75 |e entered in tru| 00000430 65 20 61 6c 67 65 62 72 61 69 63 20 66 6f 72 6d |e algebraic form| 00000440 2e 20 0a 20 20 20 20 20 0a 20 20 20 20 41 20 6c |. . . A l| 00000450 61 72 67 65 20 6e 75 6d 62 65 72 20 6f 66 20 69 |arge number of i| 00000460 6e 62 75 69 6c 74 20 66 75 6e 63 74 69 6f 6e 73 |nbuilt functions| 00000470 20 61 72 65 20 70 72 6f 76 69 64 65 64 20 73 75 | are provided su| 00000480 63 68 20 61 73 20 68 79 70 65 72 62 6f 6c 69 63 |ch as hyperbolic| 00000490 20 0a 20 20 20 20 74 72 69 67 20 66 75 6e 63 74 | . trig funct| 000004a0 69 6f 6e 73 20 61 6e 64 20 61 20 66 61 63 74 6f |ions and a facto| 000004b0 72 69 61 6c 20 66 75 6e 63 74 69 6f 6e 2e 20 0a |rial function. .| 000004c0 20 20 20 20 20 0a 20 20 20 20 4f 70 65 72 61 74 | . Operat| 000004d0 69 6f 6e 20 69 6e 20 64 65 67 72 65 65 73 20 6f |ion in degrees o| 000004e0 72 20 72 61 64 69 61 6e 73 2e 20 0a 20 20 20 20 |r radians. . | 000004f0 20 0a 20 20 20 20 54 68 65 20 64 69 73 70 6c 61 | . The displa| 00000500 79 65 64 20 67 72 61 70 68 20 77 69 6c 6c 20 62 |yed graph will b| 00000510 65 20 73 63 61 6c 65 64 20 69 6e 73 74 61 6e 74 |e scaled instant| 00000520 6c 79 20 61 73 20 74 68 65 20 64 69 73 70 6c 61 |ly as the displa| 00000530 79 20 77 69 6e 64 6f 77 20 69 73 20 0a 20 20 20 |y window is . | 00000540 20 72 65 73 69 7a 65 64 2e 20 54 68 69 73 20 6d | resized. This m| 00000550 65 61 6e 73 20 74 68 61 74 20 74 68 65 20 66 75 |eans that the fu| 00000560 6c 6c 20 67 72 61 70 68 20 77 69 6c 6c 20 62 65 |ll graph will be| 00000570 20 64 69 73 70 6c 61 79 65 64 20 69 72 72 65 73 | displayed irres| 00000580 70 65 63 74 69 76 65 20 0a 20 20 20 20 6f 66 20 |pective . of | 00000590 74 68 65 20 77 69 6e 64 6f 77 20 73 69 7a 65 2e |the window size.| 000005a0 20 0a 20 20 20 20 20 0a 20 20 20 20 48 65 6c 70 | . . Help| 000005b0 20 6d 65 73 73 61 67 65 73 20 61 72 65 20 70 72 | messages are pr| 000005c0 6f 64 75 63 65 64 20 69 66 20 21 68 65 6c 70 20 |oduced if !help | 000005d0 69 73 20 69 6e 73 74 61 6c 6c 65 64 2e 20 0a 20 |is installed. . | 000005e0 20 20 20 20 0a 20 20 20 20 20 0a 0a 0a 0a 0a 0a | . ......| 000005f0 0a 0a 0a 0a 0a 0a 0a 0a 0a 20 20 20 20 20 20 20 |......... | 00000600 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000610 20 20 20 20 20 20 20 20 20 20 20 20 20 50 61 67 | Pag| 00000620 65 20 31 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 20 20 20 |e 1.......... | 00000630 20 4c 6f 61 64 69 6e 67 20 0a 20 20 20 20 20 0a | Loading . .| 00000640 20 20 20 20 54 68 65 20 61 70 70 6c 69 63 61 74 | The applicat| 00000650 69 6f 6e 20 63 61 6e 20 62 65 20 6c 6f 61 64 65 |ion can be loade| 00000660 64 20 69 6e 20 6f 6e 65 20 6f 66 20 74 77 6f 20 |d in one of two | 00000670 77 61 79 73 2e 20 0a 20 20 20 20 20 0a 20 20 20 |ways. . . | 00000680 20 31 20 20 20 20 49 6e 73 65 72 74 20 61 6e 64 | 1 Insert and| 00000690 20 6d 6f 75 6e 74 20 74 68 65 20 64 69 73 63 2e | mount the disc.| 000006a0 20 44 6f 75 62 6c 65 20 63 6c 69 63 6b 20 6f 6e | Double click on| 000006b0 20 74 68 65 20 21 67 72 61 70 68 73 20 69 63 6f | the !graphs ico| 000006c0 6e 2e 20 54 68 69 73 20 0a 20 20 20 20 20 20 20 |n. This . | 000006d0 20 20 77 69 6c 6c 20 69 6e 73 74 61 6c 6c 20 74 | will install t| 000006e0 68 65 20 61 70 70 6c 69 63 61 74 69 6f 6e 20 6f |he application o| 000006f0 6e 20 74 68 65 20 72 69 67 68 74 20 6f 66 20 74 |n the right of t| 00000700 68 65 20 69 63 6f 6e 20 62 61 72 2e 20 0a 20 20 |he icon bar. . | 00000710 20 20 20 20 20 20 20 43 6c 69 63 6b 69 6e 67 20 | Clicking | 00000720 6f 6e 63 65 20 77 69 74 68 20 73 65 6c 65 63 74 |once with select| 00000730 20 77 69 6c 6c 20 63 61 75 73 65 20 74 68 65 20 | will cause the | 00000740 67 72 61 70 68 20 77 69 6e 64 6f 77 20 74 6f 20 |graph window to | 00000750 62 65 20 0a 20 20 20 20 20 20 20 20 20 6f 70 65 |be . ope| 00000760 6e 65 64 2e 20 0a 20 20 20 20 20 0a 20 20 20 20 |ned. . . | 00000770 32 20 20 20 20 49 6e 73 65 72 74 20 61 6e 64 20 |2 Insert and | 00000780 6d 6f 75 6e 74 20 74 68 65 20 64 69 73 63 2e 20 |mount the disc. | 00000790 44 6f 75 62 6c 65 20 63 6c 69 63 6b 20 6f 6e 20 |Double click on | 000007a0 61 20 67 72 61 70 68 20 64 61 74 61 20 66 69 6c |a graph data fil| 000007b0 65 2e 20 0a 20 20 20 20 20 20 20 20 20 54 68 65 |e. . The| 000007c0 73 65 20 63 61 6e 20 62 65 20 69 64 65 6e 74 69 |se can be identi| 000007d0 66 69 65 64 20 62 79 20 68 61 76 69 6e 67 20 66 |fied by having f| 000007e0 28 78 29 3d 20 6f 6e 20 74 68 65 69 72 20 69 63 |(x)= on their ic| 000007f0 6f 6e 2e 20 0a 20 20 20 20 20 20 20 20 20 54 68 |on. . Th| 00000800 69 73 20 77 69 6c 6c 20 63 61 75 73 65 20 74 68 |is will cause th| 00000810 65 20 61 70 70 6c 69 63 61 74 69 6f 6e 20 74 6f |e application to| 00000820 20 6c 6f 61 64 20 61 6e 64 20 74 68 65 20 67 72 | load and the gr| 00000830 61 70 68 20 66 69 6c 65 20 74 6f 20 62 65 20 0a |aph file to be .| 00000840 20 20 20 20 20 20 20 20 20 6c 6f 61 64 65 64 2e | loaded.| 00000850 20 54 68 65 20 67 72 61 70 68 20 69 63 6f 6e 20 | The graph icon | 00000860 77 69 6c 6c 20 61 70 70 65 61 72 20 6f 6e 20 74 |will appear on t| 00000870 68 65 20 69 63 6f 6e 20 62 61 72 2e 20 54 68 65 |he icon bar. The| 00000880 72 65 20 77 69 6c 6c 20 62 65 20 0a 20 20 20 20 |re will be . | 00000890 20 20 20 20 20 61 20 70 61 75 73 65 20 77 68 69 | a pause whi| 000008a0 6c 73 74 20 74 68 65 20 66 75 6e 63 74 69 6f 6e |lst the function| 000008b0 73 20 61 72 65 20 65 76 61 6c 75 61 74 65 64 2e |s are evaluated.| 000008c0 20 41 20 77 69 6e 64 6f 77 20 77 69 6c 6c 20 6f | A window will o| 000008d0 70 65 6e 20 0a 20 20 20 20 20 20 20 20 20 61 6e |pen . an| 000008e0 64 20 74 68 65 20 67 72 61 70 68 73 20 77 69 6c |d the graphs wil| 000008f0 6c 20 62 65 20 64 69 73 70 6c 61 79 65 64 2e 20 |l be displayed. | 00000900 0a 20 20 20 20 20 0a 20 20 20 20 41 20 6d 69 6e |. . A min| 00000910 69 6d 75 6d 20 6f 66 20 32 30 30 6b 20 6d 75 73 |imum of 200k mus| 00000920 74 20 62 65 20 61 76 61 69 6c 61 62 6c 65 20 74 |t be available t| 00000930 6f 20 6c 6f 61 64 20 21 67 72 61 70 68 20 0a 20 |o load !graph . | 00000940 20 20 20 20 0a 20 20 20 20 4d 61 69 6e 20 6d 65 | . Main me| 00000950 6e 75 20 0a 20 20 20 20 20 0a 20 20 20 20 54 68 |nu . . Th| 00000960 65 20 6d 61 69 6e 20 6d 65 6e 75 20 63 61 6e 20 |e main menu can | 00000970 62 65 20 70 6f 70 70 65 64 20 75 70 20 61 74 20 |be popped up at | 00000980 61 6e 79 20 74 69 6d 65 20 62 79 20 63 6c 69 63 |any time by clic| 00000990 6b 69 6e 67 20 6d 65 6e 75 20 77 68 69 6c 73 74 |king menu whilst| 000009a0 20 0a 20 20 20 20 6f 76 65 72 20 74 68 65 20 67 | . over the g| 000009b0 72 61 70 68 73 20 77 69 6e 64 6f 77 2e 20 0a 20 |raphs window. . | 000009c0 20 20 20 20 0a 20 20 20 20 54 68 65 20 6d 65 6e | . The men| 000009d0 75 20 68 61 73 20 74 68 65 20 66 6f 6c 6c 6f 77 |u has the follow| 000009e0 69 6e 67 20 6f 70 74 69 6f 6e 73 3a 2d 20 0a 20 |ing options:- . | 000009f0 20 20 20 20 0a 20 20 20 20 31 20 20 20 20 53 61 | . 1 Sa| 00000a00 76 65 20 64 61 74 61 2e 20 20 0a 20 20 20 20 20 |ve data. . | 00000a10 20 20 20 20 54 68 69 73 20 61 6c 6c 6f 77 73 20 | This allows | 00000a20 74 68 65 20 66 75 6e 63 74 69 6f 6e 73 20 61 6e |the functions an| 00000a30 64 20 61 78 65 73 20 72 61 6e 67 65 73 20 74 6f |d axes ranges to| 00000a40 20 62 65 20 73 61 76 65 64 20 74 6f 20 64 69 73 | be saved to dis| 00000a50 63 2e 20 0a 20 20 20 20 20 0a 20 20 20 20 20 20 |c. . . | 00000a60 20 20 20 46 6f 6c 6c 6f 77 20 74 68 65 20 61 72 | Follow the ar| 00000a70 72 6f 77 20 74 6f 20 74 68 65 20 72 69 67 68 74 |row to the right| 00000a80 20 6f 66 20 74 68 65 20 6d 65 6e 75 2e 20 41 20 | of the menu. A | 00000a90 73 74 61 6e 64 61 72 64 20 52 69 73 63 20 4f 73 |standard Risc Os| 00000aa0 20 0a 20 20 20 20 20 20 20 20 20 73 61 76 65 20 | . save | 00000ab0 77 69 6e 64 6f 77 20 77 69 6c 6c 20 61 70 70 65 |window will appe| 00000ac0 61 72 2e 20 45 6e 74 65 72 20 74 68 65 20 66 69 |ar. Enter the fi| 00000ad0 6c 65 20 6e 61 6d 65 20 69 6e 20 74 68 65 20 74 |le name in the t| 00000ae0 65 78 74 20 62 6f 78 20 6f 72 20 0a 20 20 20 20 |ext box or . | 00000af0 20 20 20 20 20 63 68 61 6e 67 65 20 74 68 65 20 | change the | 00000b00 65 78 69 73 74 69 6e 67 20 6e 61 6d 65 2e 20 54 |existing name. 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A b| 00002a90 6f 75 6e 64 69 6e 67 20 62 6f 78 20 77 69 6c 6c |ounding box will| 00002aa0 20 62 65 20 64 72 61 77 6e 20 66 72 6f 6d 20 77 | be drawn from w| 00002ab0 68 65 72 65 20 74 68 65 20 70 6f 69 6e 74 65 72 |here the pointer| 00002ac0 20 69 73 20 74 6f 20 77 68 65 72 65 20 74 68 65 | is to where the| 00002ad0 20 0a 20 20 20 20 70 6f 69 6e 74 65 72 20 77 61 | . pointer wa| 00002ae0 73 20 77 68 65 6e 20 61 64 6a 75 73 74 20 77 61 |s when adjust wa| 00002af0 73 20 63 6c 69 63 6b 65 64 2e 20 0a 20 20 20 20 |s clicked. . | 00002b00 20 0a 20 20 20 20 4d 6f 76 65 20 74 6f 20 74 68 | . 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The g| 00002bc0 72 61 70 68 20 77 69 6c 6c 20 6e 6f 77 20 62 65 |raph will now be| 00002bd0 20 72 65 2d 64 72 61 77 6e 20 77 69 74 68 20 74 | re-drawn with t| 00002be0 68 65 20 6e 65 77 20 61 78 65 73 20 72 61 6e 67 |he new axes rang| 00002bf0 65 2e 20 0a 20 20 20 20 20 0a 20 20 20 20 20 0a |e. . . .| 00002c00 20 20 20 20 53 61 76 69 6e 67 20 61 73 20 61 20 | Saving as a | 00002c10 73 70 72 69 74 65 20 0a 20 20 20 20 20 0a 20 20 |sprite . . | 00002c20 20 20 49 74 20 69 73 20 75 73 75 61 6c 6c 79 20 | It is usually | 00002c30 70 72 65 66 65 72 61 62 6c 65 20 74 6f 20 65 78 |preferable to ex| 00002c40 70 6f 72 74 20 74 68 65 20 67 72 61 70 68 20 61 |port the graph a| 00002c50 73 20 61 20 64 72 61 77 20 66 69 6c 65 2c 20 69 |s a draw file, i| 00002c60 74 20 6d 61 79 20 62 65 20 0a 20 20 20 20 73 61 |t may be . sa| 00002c70 76 65 64 20 61 73 20 61 20 73 70 72 69 74 65 20 |ved as a sprite | 00002c80 62 79 20 75 73 69 6e 67 20 74 68 65 20 67 72 61 |by using the gra| 00002c90 62 20 73 70 72 69 74 65 20 6f 70 74 69 6f 6e 20 |b sprite option | 00002ca0 6f 6e 20 21 70 61 69 6e 74 20 61 6e 64 20 0a 20 |on !paint and . | 00002cb0 20 20 20 67 72 61 62 62 69 6e 67 20 74 68 65 20 | grabbing the | 00002cc0 67 72 61 70 68 20 66 72 6f 6d 20 74 68 65 20 77 |graph from the w| 00002cd0 69 6e 64 6f 77 2e 20 0a 0a 0a 0a 0a 0a 0a 0a 0a |indow. .........| 00002ce0 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a |................| * 00002d00 0a 0a 0a 0a 0a 0a 0a 20 20 20 20 20 20 20 20 20 |....... | 00002d10 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00002d20 20 20 20 20 20 20 20 20 20 20 20 50 61 67 65 20 | Page | 00002d30 36 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 20 20 20 20 4e |6.......... N| 00002d40 6f 74 65 20 0a 20 20 20 20 20 0a 20 20 20 20 54 |ote . . T| 00002d50 68 65 20 66 69 6c 65 20 74 79 70 65 20 37 37 37 |he file type 777| 00002d60 20 68 61 73 20 62 65 65 6e 20 75 73 65 64 20 66 | has been used f| 00002d70 6f 72 20 61 20 67 72 61 70 68 20 64 61 74 61 20 |or a graph data | 00002d80 66 69 6c 65 2e 20 20 0a 20 20 20 20 20 0a 20 20 |file. . . | 00002d90 20 20 20 0a 20 20 20 20 20 0a 20 20 20 20 20 0a | . . .| 00002da0 20 20 20 20 41 20 46 20 4c 61 6e 65 20 0a 20 20 | A F Lane . | 00002db0 20 20 33 20 4c 61 6e 73 64 6f 77 6e 65 20 47 61 | 3 Lansdowne Ga| 00002dc0 72 64 65 6e 73 20 0a 20 20 20 20 48 61 69 6c 73 |rdens . Hails| 00002dd0 68 61 6d 20 0a 20 20 20 20 45 61 73 74 20 53 75 |ham . East Su| 00002de0 73 73 65 78 20 0a 20 20 20 20 42 4e 32 37 20 31 |ssex . BN27 1| 00002df0 4c 51 20 0a 20 20 20 20 20 0a 20 20 20 20 46 65 |LQ . . Fe| 00002e00 62 72 75 61 72 79 20 31 39 39 30 20 0a 20 20 20 |bruary 1990 . | 00002e10 20 20 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a | ..............| 00002e20 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a |................| 00002e30 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 20 20 20 20 |............ | 00002e40 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | * 00002e60 50 61 67 65 20 37 0a 0a 0a 0a |Page 7....| 00002e6a
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