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- POINT FIVE
- A Data Analysis and Modeling Program
-
- Copyright 1985
- by Pacific Crest Software, Inc.
- All Rights Reserved
- No part of the system may be photocopied
- without express permission of
- Pacific Crest Software, Inc.
-
- Pacific Crest Software
- 887 NW Grant Ave.
- Corvallis, OR 97330
- (503) 754-1067
-
-
- POINT FIVE is an easy to use supercalculator that allows you to begin
- using it as a simple desk calculator with graphics, but expands in
- power as your knowledge on how to use its capabilities grows.
-
- NOTICE
-
- THIS IS NOT FREE SOFTWARE! If you paid a "public domain" vendor for
- this program, you paid for the service of copying the program, and not
- for the program itself. If you make regular use of POINT FIVE, you
- should register your copy. This is a fully functional version of
- POINT FIVE and not "crippled" in any way.
-
- OVERVIEW: In POINT FIVE, you see a Scratchpad in the lower part of
- the screen, where you do calculations. The upper part of the screen
- displays the results of calculations. Lines in the Scratchpad can be
- edited and reexecuted. With a Function Key you can call a Data Editor
- that allows you create or edit variables. These variables can be
- scalars (a single number), vectors (a column of numbers) or a matrix
- (multiple columns). Within the Scratchpad there are over 150
- mathematical, statistical, and financial functions for operating on
- these variables. Results can be displayed graphically with ease.
- Data can be imported or exported to other systems. A Help system (F1)
- provides the equivalent of a manual on-line, showing you each function
- with an example of use. An award-winning User's Guide is available
- with Registration. POINT FIVE has been used in over 200 colleges in
- classrooms as a part of mathematical and science curriculum.
-
- SYSTEM REQUIREMENTS: 256K PC with 1 floppy disk drive and CGA.
- POINT FIVE will run faster with hard disk. Four versions are
- available: CGA; CGA with math co-processor; Hercules; Hercules with
- math co-processor. Included here is the CGA version. A graphics
- print driver is included for HP Laserjet.
-
- STARTING POINT FIVE:
- Hard drive-- Copy all the files from the floppy disk into a
- sub-directory (eg POINT5). Change the directory
- and call POINT FIVE:
- MD POINT5
- COPY A:*.* POINT5
- CD POINT5 (this is required)
- PF
- Floppy drive only-- Place the floppy disk with POINT FIVE in drive A
- and at the prompt type PF and press Enter.
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- PRINTING GRAPHS WITH POINT FIVE:
- To print POINT FIVE graphs on an Epson or IBM Graphics printer (or
- compatible) you must execute GRAPHICS.COM before entering POINT FIVE.
- Normally you would do this by placing GRAPHICS.COM either in your
- AUTOEXEC.BAT or your PF.BAT that calls POINT FIVE. We have included
- a graphics printer driver (HPLCGA.COM) for the HP Laser printer to use
- in place of GRAPHICS.COM. Note p. 105 of "Your Guide to POINT FIVE".
-
- INCREASING MEMORY:
- POINT FIVE as shipped runs in 256K. If you want to increase the
- memory for data, run PFSETUP, and respond to the prompts. If you have
- 640K (maximum usable), respond to the prompt with 340K because some
- memory is required by DOS.
-
- EXAMPLES OF USE:
- -----------------------------------------------------------------
- 3*4+(1234-978)/56 ;displays the result 16.57
- 5.25^3 ;displays the result 144.70
- The operators are +,-,/,*,^. ; denotes beginning of a comment.
- -----------------------------------------------------------------
- INDEX(10) ;sets up sequence of numbers: 1,2,..,10
- income=INDEX(10)*10000 ;set up a vector 10000,20000,...,100000
- tax_rate=.15 ;set up a scalar of .15
- tax=tax_rate*income ;stores results in tax: 1500,3000,...,15000
- tax ;displays results in Output Window (OW)
- BARGRAPH(tax) ;shows a graph of the variable
- -----------------------------------------------------------------
- plan=AMORTIZE(1000,.10,5,1) ;shows amortization plan for 1000,
- 10% interest, 5 years, 1 paymt/year.
- plan ;displays result: the 1st two columns are the part of payment
- ;for interest and principal, the last column is remaining
- ;balance.
- 1000.00 1637.97 8362.03
- 836.20 1801.77 6560.25
- 656.03 1981.95 4578.30
- 457.83 2180.14 2398.16
- 239.82 2398.16 0.00
- BARGRAPH(plan) ;displays result in bar graph
- plan[#,1]+plan[#,2] ;adds column 1 of plan to column 2 of plan
- showing that annual payments are equal.
-
- This latter example shows you how to use subscripts [..,..] to operate
- on a cell or a row or a column of a variable. The # tells POINT FIVE
- to use all the rows (or columns) of the variable.
- -----------------------------------------------------------------
- Create the following variables with the Data Editor:
- gallons that contains the gallons in your last 10 fillups
- miles that contains the miles traveled on each fillup
-
- Return to the Scratchpad and type in the following statements:
- miles/gallons ;shows the miles per gallon each fillup
- mpg=miles/gallons ;save result in mpg
- SCATPLOT(miles,mpg) ;plots mpg (y-axis) vs miles (x-axis)
- MEAN(miles/gallons) ;shows the average for the 10 fillups.
- x=index(10) ;set up x-axis value
- linegraph(x,gallons,mpg) ;compares gallons and mpg against x
- -----------------------------------------------------------------
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- USING POINT FIVE:
- After executing PF (the call to POINT FIVE), you see the Main Menu of
- POINT FIVE.
-
- Move the cursor to "Creating a New Workspace" and press Enter. Now
- you will see the Scratchpad screen.
-
- Type in Example 1 above and you will see the result displayed.
-
- Press F1 to see the Help system. Type HELP and you will see the Help
- help screen. After reading that screen, move the cursor to "General
- Help" and press Enter. By moving the cursor to any of the entries,
- you can browse the Help system for POINT FIVE. To exit the Help, just
- press Enter on "Back to Work". Later to reenter the General Help,
- just press F1 and type GENERAL at the prompt.
-
- Press F2 to see the Data Editor. Respond to the prompt with A (to
- name the variable A), then Y (to create it), then 5 (for five rows),
- then 3 (for 3 columns). You will see a matrix of 5 rows and 3 columns
- filled with ?. In POINT FIVE these ? denote "missing", meaning that
- each cell with ? does not yet have a number defined. Type in some
- numbers and press Enter; the cursor will move to the next cell; repeat
- the process until you have filled all but one cell. You can use Tab
- and ShiftTab to move between cells if you want to change a value.
- Press Esc to exit from the Data Editor.
-
- Now type A in the Scratchpad (and press Enter) and you will see A
- displayed in the Output Window (OW). Type A*5 in the Scratchpad and
- look at the result in the OW. Notice that the ? is retained; any
- number times ? is ?. Now type BARGRAPH(A). Notice that when the
- graph is displayed, the last set has only 2 bars; this is because the
- ? is not graphed. Press any key to return to the Scratchpad from the
- graph.
-
- Experiment with POINT FIVE by trying the above examples. Try some of
- your own. Use the Data Editor to modify data. Try some of the other
- graph types. To see the help on graphs, press F1 and type GRAPH.
-
- Pressing ESC will exit from any prompt without taking action.
-
- Exit POINT FIVE by pressing F3 and responding to the prompt with a
- name for the workspace, or by pressing ShiftF3 which exits without
- saving the workspace.
-
- This is all you need to know to use POINT FIVE as a graphing desk
- calculator. From this point on, you can use the Help system to expand
- your knowledge about the capabilities of the system.
-
- A last important point. You cannot break the system. So try things.
- Experiment. This is the way to learn the power of POINT FIVE.
-
- MAKING A BAT FILE FOR POINT FIVE:
- You may want to make a BAT file to call POINT FIVE from the POINT5
- directory. To do so, use a word processor to make this file --
- CD \POINT5
- GRAPHICS.COM (or replace with HPLCGA.COM)
- PF
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- COMMERCIAL: POINT FIVE was our initial attempt at an easy to use
- supercalculator. It was priced at $295 for an individual copy, but
- was primarily marketed to universities through site licenses as a
- curriculum development tool. While POINT FIVE is very powerful, our
- users requested many features to make it even more powerful. In 1990,
- we released the follow-on product, PC:SOLVE, which sells for $495,
- with optional libraries at $100 each. To introduce people to this
- powerful technology, we are making POINT FIVE available as Shareware.
-
- While, with its comprehensive Help system, you can use POINT FIVE
- without any additional documentation, we highly recommend registering
- to get the award winning User's Guide.
-
- REGISTRATION INFORMATION:
-
- The non-commercial single-user registration fee for POINT FIVE is
- $25.00 US (and this includes shipping ground UPS). For information
- about the commercial and multisystem site fee for POINT FIVE, contact
- Pacific Crest Software at the above address.
-
- The copy you have is the most up-to-date copy, so no disk will be
- shipped with registration; only the User's Guide will be shipped to
- registrants. Two additional options are available.
-
- - The Shareware product supports only CGA. If you wish Hercules
- support for better graphic resolution, please add $10 for the
- cost of disk reproduction and handling.
-
- - If you find POINT FIVE useful for modeling or data analysis and
- you have a 80x87 in your PC, you may want to purchase the math
- co-processor version for $25; this dramatically improves the
- performance of POINT FIVE. (No additional charge for Hercules.)
-
- Registering will also bring you literature about PC:SOLVE and our
- special upgrade price for POINT FIVE shareware users.
-
- To register just call us at [503] 754-1067 (alternate:[408] 268-3758)
- with your VISA number or send a check for $25 (or $50 to get the math
- co-processor version) to:
- POINT FIVE Offer
- Pacific Crest Software
- 887 NW Grant Ave
- Corvallis, OR 97330.
-
- We normally ship 5.25" 360K diskettes, but will furnish 3.5" 720K
- media upon request. Customers outside of the United States and Canada
- should add $5.00 for airmail shipping. We can accept VISA charges.
-
- Please indicate the product(s) you are ordering
- - Registration only $25.00
- - Hercules plus $10.00
- - Co-processor version or plus $25.00
- and if you have a requirement for 3.5" media.
-
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- DISTRIBUTION NOTICE
-
- This is "user-supported" software. You are hereby granted a license
- by Pacific Crest Software to distribute this evaluation copy of POINT
- FIVE and its documentation, subject to the following conditions:
-
- 1. POINT FIVE may be distributed freely without charge in evaluation
- form only.
-
- 2. POINT FIVE may not be sold, licensed, or a fee charged for its
- use. If a fee is charged in connection with POINT FIVE, it must
- cover the cost of copying or dissemination only. Such charges
- must be clearly identified as such by the originating party.
- Under no circumstances may the purchaser be given the impression
- that he is buying POINT FIVE itself.
-
- 3. POINT FIVE must be presented as a complete unit, including this
- documentation. Neither POINT FIVE nor its documentation may be
- amended or altered in any way.
-
- 4. By granting you the right to distribute the evaluation form of
- POINT FIVE, you do not become the owner of POINT FIVE in any
- form.
-
- Any other use, distribution or representation of POINT FIVE is
- expressly forbidden without the written consent of Pacific Crest
- Software.
-
- POINT FIVE, its HELP system, and the manual "Your Guide To POINT FIVE"
- are fully copyright protected.