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1991-08-26
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REAL Numbers - Version 1.10 TAP110.TXT
-------------------------------------------------------------------------
Copyright 1990, 1991 BU Systems Company
PO Box 1065, Lafayette, CA 94549
510-284-1610
This text file describes REAL Numbers, presents examples, and lists changes
in version 1.1. TAP110.EXE is a self-extracting archive containing the
REAL Numbers program, documentation, and tutorial files.
REAL Numbers provides multiple scrolling calculator tapes that can be
edited, saved, formatted, and printed. MUCH MORE THAN JUST A CALCULATOR,
it can be used for a wide range of business, home, and school applications.
Use it as a calculator, or a checkbook manager, or a business accounting
system, among many possible uses.
PROGRAM FEATURES
----------------
* Up to 15 unlimited length scrolling tapes in separate windows.
Actual maximum is limited by computer memory and complexity of the
tape. About 8,000 lines is typical capacity for 640k. It runs well
on floppy systems with 256k.
* A column for descriptive text in each tape.
* Over 30 built-in functions and operators:
+ - * / Arithmetic DL Delta percent
e pi Constants RND Round
% Percent ABS Absolute value
^ Power MOD Modulus
S T TS Subtotal, Total
SQR Square root -- Finance and Business --
INV Inverse (1/x) PV Present value
LOG Log base 10 FV Future value
LN Log base e PVA Present value of annuity
SIN Sine FVA Future value of annuity
COS Cosine LAMT Loan amount
TAN Tangent LPMT Loan payment
ASIN Arcsine LINT Loan interest
ACOS Arccosine LPER Loan payment periods
ATAN Arctangent GPM Gross profit margin
DTOR Degrees to radians
RTOD Radians to degrees
* Report writer for formatting and printing tapes. This can be used to
produce documents such as balance sheets and budgets.
* Evaluation of algebraic expressions with nested parentheses.
* Automatic background recalculation whenever a tape line is changed.
* Unlimited number of named memory variables, for example "SALES".
* File handling for saving, loading, and exporting tape files. A new
version 1.1 feature is the ability to export comma delimited files
for loading into Lotus spreadsheets and other programs.
* Flexible setup options, including:
Negative values with leading minus, trailing minus, or parentheses.
Rounding up, down, or to nearest digit, from 0 to 18 decimal places.
Decimal position can be fixed or floating, or placed automatically.
* Pull-down menus and over 50 help screens.
EXAMPLE #1
----------
A few examples of mathematical operators and functions:
--- Labels Column --- --- Tape Column ---
Add a column of numbers:+ 123,456,789.12
+ 2.22
+ 3.33
Subtotal = 123,456,794.67
Reverse sign (line 7)= 123,456,794.67-
<Clear> C
Algebraic expression = (1+2+3)*5
Add that to the subtotal+ 30.00
Add 5% of that + 5%
Subtotal (line 12)= 31.50
Line 7 + Line 12 = L7+L12
= 123,456,763.17-
<Clear> C
Subtotals and Totals + 1.10
+ 3.30
First subtotal S 4.40
+ 10.00
+ 30.00
Second subtotal S 40.00
+ 200.00
Show and clear total T 244.40
Adding a percentage = 120+5%
= 126
Multiply by percentage = 120*5%
= 6
--- MATH FUNCTIONS ----
Square Root = SQR(2)
= 1.414214
Modulus = MOD(33,17.5)
= 15.5
Logarithm base e = LN(e^e)/e
= 1
Delta Percent Change = DL(100,150)
50% increase = 0.5
---- TRIGONOMETRIC ----
Sine = SIN(pi/2)
= 1
Arc Tangent = ATAN(1)
= 0.785398
Sine of an angle = SIN(DTOR(90))
given in degrees = 1
EXAMPLE #2
----------
A few examples of business and financial functions:
--- Labels Column --- --- Tape Column ---
Present Value of $1,000 = PV(1000,7.2%,10)
in 10 years @ 7.2% = $ 498.944393
Future Value of Annuity = FVA(100,6%,10)
$100 for 10 years, 6%= $ 1,318.079494
Loan Amount, 30 years, = LAMT(877.58,10%/12,30*12)
10%, $877.58/month = $ 100,000.96
Loan Payment per month = LPMT(100000,10%/12,30*12)
$100,000, 10%, 30 yrs= $ 877.57
Gross Profit Margin + $ 1,000.00
20% profit margin + GPM(1000,20%)
Retail price = $ 1,250.00
EXAMPLE #3
----------
This example shows an algebraic expression. Note the use of the
memory variables "XYZ", and "FUDGEFAC". Memory variables are set
with the F6 key (M+, M-, M=, MC memory settings are supported).
INV(SQR(ABS(-3*7))+SIN(XYZ)^3)*(FUDGEFAC+4.1%)
EXAMPLE #4
----------
This example shows a checkbook, including bank reconciliation and
an expense account summary. This is formatted output from the
report writer.
Date: 08/22/91 Checking Acct# 12511-4049 Page: 1
Pacific Western Bank
October Farm Account
--------------------
10/01 OPENING BALANCE $ 1,219.22
10/03 1344 Acme Supply / Fertilizer 823.56-
10/03 1345 Joe's Tractor Repair 124.50-
10/04 1346 VOID 0.00
10/04 1347 4 Corners Tool Shed 18.50-
10/04 DEPOSIT - COOP Grain Advance 3,725.00
10/07 1348 Sanchez, Cohen & Smith 137.18-
10/09 1349 Mechanics Bank 206.97-
10/11 1350 Property Tax 1,985.00-
10/12 1351 Acme Supply / Pallets 359.20-
10/13 DEPOSIT - Johnson pasture rent 750.00
10/13 1352 Transfer to personal acct 950.00-
10/15 1353 Central Hardware / Nails 17.33-
10/15 1354 North State Power 87.88-
10/18 DEBIT - Bank Service Fee 12.50-
10/20 1355 County Grain Haulers 195.50-
10/25 1356 Bouchard's Insurance 110.24-
-------------
10/27 ENDING BALANCE $ 665.86
=============
BANK RECONCILIATION
10/18 Bank Balance 1,348.13
Uncleared Checks and Deposits 376.53-
-------------
Adjusted Balance 971.60
10/18 Book Balance 971.60-
-------------
Difference 0.00
=============
OCTOBER SUMMARY
Debt Payments $ 206.97-
Personal draw 950.00-
Fertilizer 823.56-
Insurance 110.24-
Professional Fees 137.18-
Repairs 141.83-
Supplies 377.70-
Taxes 1,985.00-
Hauling and Transportation 195.50-
Bank Fees 12.50-
Utilities 87.88-
-------------
Total Expenses $ 5,028.36-
Opening Cash Balance 1,219.22
Receipts 4,475.00
Ending Cash Balance $ 665.86
=============
VERSION 1.10
------------
Highlights of new features and changes are as follows:
1) New File menu Export selection to save a tape in a file format that
can be imported into Lotus spreadsheets, as well into many other
popular programs.
2) New 'T'otal, 'S'ubtotal, and 'TS' operators. 'S'ubtotal displays and
clears the subtotal. 'T'otal displays the sum of previous subtotals
and clears the total. The 'TS' operator displays the total without
clearing it.
3) New Tape menu Clear selection that clears the lines from a tape, while
retaining the setup and configuration options.
4) A problem with Automatic Decimal placement in numbers has been fixed.
Use the 'D'ecimal selection on the Setup menu to turn on the automatic
decimal feature.
5) A problem with line value references has been fixed. Line values allow
you to use the value from another line. For example, L17 refers to the
value of line 17.
6) Performance improvements, including better use of background
recalculation.
7) The Help screens have been expanded and reorganized with more examples
and better assistance for new users.
8) The demonstration tapes (DEMO1, DEMO2, DEMO3) have been modified
to use the new features in this release.
9) The program now remembers whether the Edit Window in the tape is
open when you move between the tape and the menu.
10) The print file name for writing a report to a file can be changed
at the point of starting the report, rather than having to go
to the Report menu Options Setup selection first.
11) The GPM (gross profit margin) function now works for mark downs
(with a negative percentage), as well as for mark ups.
---------------------------<end>--------------------------------