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- KALKULATOR - VERSION HISTORY
- ============================
-
- VERSION 2.12 - 98/05/13
-
- Minor improvements:
-
- Result display now possible with accuracy up to 18 (not 16) digits.
-
- Added auto-detection for floating-point coprocessor accuracy loss.
-
- Bug fix:
-
- The degree button now has the right symbol on it.
-
- VERSION 2.11 - 98/04/17
-
- Small improvements:
-
- The integration algorithm now better handles ill-behaved functions.
-
- New display fonts.
-
- VERSION 2.10 - 98/03/23
-
- Major new features:
-
- Extremum search for multi-argument (up to 9 parameters) functions.
-
- Multi-parameter curve and histogram fitting.
-
- Minor changes:
-
- The [Zap] buttons now clear all variables (or all arguments, or
- all parameters) in the Variable Panel.
-
- The argument variables t1..t9 have been renamed to v1..v9 to avoid
- similarity to user function arguments, t1..t3,
-
- Polynomial regression shows the residual sum of squared deviations
- in the Result Display.
-
- The maximum size of the Data Buffer in the registered version
- increased from 6400 to 64000 points (32-bit only).
-
- VERSION 2.01 - 98/01/19
-
- A minor maintenance update:
-
- Floating-point formatting cleaned up in data grids.
-
-
- VERSION 2.00 - 97/12/22
-
- Major new features:
-
- Solving systems of (up to 9) non-linear equations with use
- of the Newton-Raphson method.
-
- Goodness of fit for data distribution or regression.
-
- User-defined functions may have up to three arguments:
- ff(t), ff(t1,t2), ff(t1,t2,t3).
-
- A matrix or a vector can be computed with use of an
- expression taking row and/or column indices as parameter(s).
-
- Secondary improvements:
-
- The bottom line of operation buttons has been replaced with
- a tabbed notebook. The Expression Line now shows 64 chars.
-
- Double-clicking on the expression number will jump to line 1.
-
- The Variable Panel now has a new page, the Arguments Page. It
- shows the arguments used (and computed) in the non-linear
- equation solving operation.
-
- Each of the lists in the Variable Panel now has its own [Digit]
- button for independent display format setting. [Get] and [Zap]
- have been added in the Parameter Page.
-
- The Enter key now works the same way regardless of whether the
- graph canvas is being shown or not. To hide the graph canvas,
- use the Pause key (or Shift-Enter, or Shift-Escape). Pressing
- the Pause key when the canvas is not shown will bring it up.
-
- VERSION 1.50 - 97/03/15
-
- Double-clicking on the Result Variable is now equivalent to
- pressing the Enter Key (evaluates the expression and stores
- the result in the displayed variable).
-
- Bug fix: "t" is no longer inserted at the beginning when not
- appropriate (mouse entry only).
-
- VERSION 1.49 - 97/02/15
-
- User-defined functions can now be loaded from, or saved to a
- disk file, to allow for creation of function libraries.
-
- Clicking on the line number allows to jump to an expression
- line selected from a pop-up menu.
-
- An option to insert the last result as "t" at the beginning
- of an expression starting from +, -, * or / has been added;
- the Panel Options has been appropriately modified.
-
- Color is used in input dialogs to show the active entry field.
-
- Sound effect at startup has been removed.
-
- VERSION 1.48 - 97/01/31
-
- Changes in physical constants: new values added, some of the
- old ones corrected or revised.
-
- VERSION 1.47 - 97/01/02
-
- The two missing pixels at the bottom of the Display Line
- have been restored (16-bit version only).
-
- Font files reverted from .FNT to .FON standard to avoid
- problems in the 16-bit version.
-
- VERSION 1.45 - 96/12/26
-
- A Result Variable can be now assigned to every expression;
- this makes chained calculations easier.
-
- The Expression Line now stays highlighted after an expression
- has been evaluated; its contents will be erased after any new
- input.
-
- Introduced a simpler method to add a regression line to an
- existing graph canvas.
-
- The graph Undo button now works as a toggle.
-
- The tabbed control widgets in the Main Panel have been
- reworked (different look and feel).
-
- The program will now find the fonts even if the working
- directory is not set to the program directory.
-
- VERSION 1.42 - 96/11/20
-
- A new feature: simultaneous function graphs of any combination
- of expression lines, with joint min/max evaluation.
-
- The Main Panel buttons (and some others) have been replaced
- with a different button type, using significantly less of
- Windows' resources (especially important for Win 3.1 users).
-
- General cleanup of the help file.
-
- New update and upgrade policy: all free for the lifetime of
- the program, without version limit.
-
- VERSION 1.40 - 96/11/05
-
- A major new feature: computer math operations, including
- conversions between binary, octal, hex and decimal, also
- 8, 16 and 32-bit word lengths.
-
- The Linear Algebra and Polynomial Root panels are now called
- from the new Extras menu (their buttons are no longer in the
- Bottom Line).
-
- For users whose email programs have problems handling file
- attachements: Kalkulator will now create a registration key
- file when you enter your key code obtained in email (in mail,
- by phone, etc.)
-
- The missing exponent in the Boltzmann constant has been added.
-
- VERSION 1.31 - 96/08/29
-
- A bug fix: no more locking when a data buffer is sorted while
- scrolled down (16-bit version only).
-
- The default directory for statistical and linear algebra files
- is now always set to the Kalkulator home directory, which could
- not be the case if the program was executed from a third-party
- shell (registered copies only).
-
- New topics in the HOWTO.TXT file.
-
- VERSION 1.30 - 96/07/15
-
- Problem with saving multiple .kal files has been fixed.
-
- VERSION 1.29 - 96/06/23
-
- There is now an option to keep Kalkulator window on top in the
- Mini Layout mode.
-
- The Escape key no longer closes the graph panel; use Enter.
-
- A check has been added against too narrow plot limits.
-
- A bug occuring in data point insert operation in the XY mode
- has been fixed.
-
- VERSION 1.28 - 96/06/12
-
- The definition of harmonic average has been corrected.
- Small touch-ups in the program and in its Help file.
-
- VERSION 1.27 - 96/05/29
-
- Fixed problem (?) with screen fonts on some systems.
-
- Small changes in how Data Grids handle errors in user input.
-
- New ordering information in the Help file: HOW TO REGISTER
- BY PHONE, FAX OR ON THE WEB USING A CREDIT CARD.
-
- VERSION 1.25 - 96/05/14
-
- An autoscroll option has been added: the Expression line
- will scroll to the next expression slot upon a successful
- computation.
-
- A [Clear] button has been added to the Root Panel.
-
- VERSION 1.24 - 96/04/22
-
- A new feature: finding real and complex roots of polynomial
- equations with real coefficients (linear, square, cubic;
- also quartic in the registered version).
-
- Pressing the F1 key will now bring context-sensitive help in
- most of the dialog boxes.
-
- VERSION 1.23 - 96/03/31
-
- A bug, introduced in V1.21 has been fixed: Kalkulator no
- longer refuses to do sums and derivatives.
-
- VERSION 1.21 - 96/03/18
-
- 32-bit: first release for Windows/95
- 16-bit: brought in sync with the 32-bit version
-
- VERSION 1.20 - 96/03/12
-
- A major new feature: linear algebra operations (matrix and
- vector algebra, matrix inversion, systems of simultaneous
- linear equations).
-
- The editor for data buffer has been redesigned: now it uses
- a data grid.
-
- The maximum length of an expression has been increased to
- 72 operands/operators or 120 characters (registered copies).
-
- The reciprocal function has been renamed from inv to rcp.
-
- A bug fix: no more lockups when the user attempts to perform
- column-wise data buffer computation if arithmetic errors
- occur at some of the points.
-
- VERSION 1.10 - 96/02/12
-
- A maintenance release (despite round version number). Fixed bug
- causing non-rounded display of some values describing plots in
- log scale.
-
- VERSION 1.09 - 96/01/14
-
- Sound effects added.
-
- Important ONLY for some European users: a "." is now used as
- the decimal point, regardless of regional settings.
-
- VERSION 1.07 - 95/12/14
-
- Expressions, not just values, are accepted wherever numerical
- input is expected. A "Mini Layout" option introduced. Physical
- constants added.
-
- VERSION 1.04 - 95/11/25
-
- Workaround around a compiler bug, affecting user functions.
-
- VERSION 1.00 - 95/11/11
-
- The original release.
-