Release Notes 4.9.4.0

• copy/paste for editor enabled
• recalculation at changing calculation options implemented
• .net security updates

Release Notes 4.9.3.2

• issue with grafic cursor values resolved
• issue with complex numbers resolved

Release Notes 4.9.3.0

• new feature to switch result format to exponential (scientific) number format improves transparency at very low or very high numbers
• security updates of all components

Release Notes 4.9.1.1

• security updates of all components

Release Notes 4.9.1.0

• mathematical interpreter reworked to allow for standard functions with two parameters
• as per several user requests, root n of value x implemented - new function button

Release Notes 4.9.0.0

• mathematical interpreter reworked
• expressions like: 4x +7 = -5x + 12 - ln(x) can now be used directly in the following modules:
  • expression solver
  • 2d function plots
  • function analyser
• an explicite function declaration using f()= isn't required anymore
• missing identifyer declarations will be displayed with detailed information what is missing

Release Notes 4.8.7.3

• event handling reworked
• improved performance for syntax highlighting
• safe handling of external methods

Release Notes 4.8.7.3

• fix for using fx-Calc on multiple screens
• consistent take over of functions from calculator to other dialogue screens
• default 11 digit rounding

Release Notes 4.8.7.2

• fix for possible issue while loading saved configuration data
• updated links to new tutorial videos
• design adjustments in all dialogues

Release Notes 4.8.6.2

• fix for combination n > k

Release Notes 4.8.6.1

• initial setting to round decimals (11 digits)
• small hints on rounding handling added to the settings dialogue

Release Notes 4.8.6.0

• minor changes to incorporate experience from Math Assistant (Android version)

Release Notes 4.8.5.0

• important fix to correct pole point calculation for inverse tangent function

Release Notes 4.8.5.0

• important fix to correct pole point calculation for more complex functions
• improved handling of switching edit modes for 2d plots

Release Notes 4.8.4.0

• support for all types of brackets {[( improves readability of expressions
• reworked offline documentation

Release Notes 4.8.3.0

• Issue in handling of drop down boxes for functions solved
• improved 2D plot:
  • alternative plot for square root
  • alternative plot for square root and complex numbers
• improved 2D plot dialog box table versus editor field

Release Notes 4.8.2.1

• interpreter improvements
  • tolerance for multiple operators
  • handling of multiple root calculations in one expression
• copy - paste support for special characters
• design adjustments

Release Notes 4.8.2.0

• adjustments in combinatorics module
• further design adjustments in the following modules
  • 3D function plot
  • 2D function plot
  • Solver
  • Function analyze modul

Release Notes 4.8.0.0

• new assistant for combinatorics

Release Notes 4.7.2.1

• few design and wording adjustments
• improved exception handling

Release Notes 4.7.2.0

• new comfortable feature to send feedback
• re-launch connectivity check manually
• new option to disable syntax highlighting on slow systems
• certain design adjustments

Release Notes 4.7.1.0

• new feature allows to select functions from a dropdown box
  • 2D plots
  • 3D plots
  • analyze functions
  • solver
• new design elements to resolve issues with very long complex results

Release Notes 4.7.0.0

• reworked function analyze modul:
  • adjusted precssion setting for extrem point calculation to prevent numeric issues
  • interval settings can now be changed on all relevant tabs, which is a significant improvement
• few design improvements
• migration of existing configuration data starting from version 4.6

Release Notes 4.6.0.0

• new concept to save status and configuration, allows data migration to coming versions
• new options:
  • rounding for calculator and result tables
  • design element colors
• design adjustments

Release Notes 4.5.2.1

• improved globalisation settings to force US number format in english version
• marshal by references removed, best possible stability

Release Notes 4.5.2.0

• important correction to enable chart elements for complex numbers
• interpreter correction for complex numbers
• initial argument for tangent equation is being adjusted if the derived function at this point is 0
• new documentation released

Release Notes 4.5.1.0

• fix for doubled minimum/maximum results
  • under special conditions (symetric intervall and odd number of steps) fx-Calc was returning 2 same extrem points instead of just one, this is fixed now

Release Notes 4.5.0.1

• small fix for data cursor in 2d charts
• design adjustment

Release Notes 4.5.0

• Windows 10 compatible
• 2D chart options can be changed (color settings and gradient)
• 2d chart options managed from just one dialogue, consistent layout and automated handling of saving and loading options

Release Notes 4.4.0.2

• clipboard button for function plots is back again

Release Notes 4.4.0

• new interactive cursor in 2d plots
• calculator results (decimals) can be shown as hex values
• fading indicator for clipboard interaction

Release Notes 4.3.0

• important interpreter correction after fix for power function
• new recursive procedure to improve pol point calculation
• all result tables can now be copied to clipboard
• regression allows to import spreadsheet data content via clipboard
• consistent design for messages
• increased number of parametric functions (40)

Release Notes 4.1.2

• Important improvement in pol point calculation
• extended function plot, including pol points with values

Release Notes 4.1.1

• Important improvement by eliminating range exceptions for function plots
• improved logic for pol point calculation
• support for multiple power functions

Release Notes 4.1.0

• calculation of pol points for
  • rational function
  • Tangent function
• design adjustments

Release Notes 4.0.1

• new features to plot parametric functions
• user defined color gradient for parametric functions

Release Notes 3.11.0

• Improved stability of numerical procedures
  • For functions with results less than 1e-6 it could happen to see confusing results for solutions. This is fixed by improving the numerical procedures to let them automatically adapt to the functions range of results.
• bug fix for power function in combination with square root function
• new combined installer for 32 and 64 bit version

Release Notes 3.10.3

• new 32 bit version with minor corrections
• new 64 bit version

Release Notes 3.10.1

• starting point for tangent is now being calculated as average of the start intervall
• improved stability for tangent calculation
• tangent equation can be moved to calculator

Release Notes 3.10.0

• calculation of tangent equations
• interactive Newton iteration to solve equations

Release Notes 3.9.2

• interpreter adjustment to
  • improve handling of decimal separators ( "," is now possible in editor window)
  • improved handling for multi line input
• improved file save methods to support multi line input

Release Notes 3.9.0

• improved handling of missing operator for multiplication
• new functionality to save or load your scenarios for:
  • 3D function plots
  • 3D vector plots
  • 2d function plots

Release Notes 3.8.4

• improved web module for online content
• reworked documentation
• bug fix for issue with 3D vector plots (wrong decimal conversion)
• improvements in handling and design

Release Notes 3.8.3

• reworked interpreter modul
• direct link to perform whatever kind of conversion via free WEB frontend

Release Notes 3.8.2

• fix to correct handling of decimals based on cultureinfo parameters, very important for any user from English speaking countries.

Release Notes 3.8.1

• less messages for calculator window
• improved handling of input errors - new indicator bars
• minor design adjustments

Release Notes 3.8.0

• new module allows 3D models based on vector function
  • example Möbius strip is included
  • combines function of polar coordinates with Cartesian coordinates

Release Notes 3.7.4

• fix for handling of intervall limits in function analyse modul eliminates a significant limitation in functionality
• intelligent axis scaling for plots in function analyse modul
• automated handling if lower limit value is higher than upper limit (exchanging them)

Release Notes 3.7.3

• It's now possible to the change the order of functions for 2D plots
• small design adjustments

Release Notes 3.7.2

• corrections in 3D modul:
  • fix for gradient for functions without symetrixc z values
  • fix for displaying the zero level grid correctly

Release Notes 3.7.1

• saves and loads calculator status automatically
• allows definition of own colors for 2D plots
• for 3D surface plots
  • definition of gradients
  • definition of background colors
  • adjustment of grid size to align on performance
• a backspace button was added

Release Notes 3.6.0

• Syntax highlighting for mathematical expressions in all moduls
• new unified validation check for inputs in all moduls
• unified axis scaling for regression module
• fix for memory manipulations for complex numbers

Release Notes 3.5.0

• new solver modul, it combines mutiple search algorithms
• window list with small icons supports better recognition of window types
• new menue design
• improved ongoing recognition of online status

Release Notes 3.4.1

• small fix on application initialisation on Windows 8.x, which was very slow before

Release Notes 3.4.0

• support for alternativ solution for square root
• 2D chart is supporting alternativ plots resulting from square roots
• how-to Button is now using the online status flag
• new dynamic menu to handle window lists
• Splashscreen
• interpreter correction for power operator (not critical)

Release Notes 3.3.0

• improved 2D plots
  • 2D plot editor content is switching back to it's former value after leaving table edit mode
  • 2D plot design rework
  • new chart options
  • plot for empty points corrected
  • numbered functions in table make it now easier to identify corresponding function plots
• revised documentation

Release Notes 3.2.2

• complex calculations with memory values was added
• again rework in 2D function plot interface to simplify function changes
• logical bug for deg/rad switch in 2D function table removed

Release Notes 3.2.0

• improved input format tolerance
• reworked 2D function plot interface
• 2d function plots for functions with complex results
• calculation with complex numbers can be switched on/off

Release Notes 3.0.1

• emergency fix for interpreter module, removes error for same numbers in calculation

Release Notes 3.0.0

• new major release
  • fully reworked interpreter module
  • allows now the use of scientific number format (1,75e-10 ) and complex numbers
  • the calculator module is now fully based on complex number calculation (sqrt -4 is now i2)
  • complex nubers in expressions and parameters
• further improvement on parameter fields

Release Notes 2.3.2

• bugfix to be able to use negative vaules in varaible fields (IMPORTANT)

Release Notes 2.3.0

• bug in thread handling fixed (caused a possible exception at application closing)
• sum and product do not create history entries for each index range change anymore
• a bug with the font on the minus (-) button under XP was solved
• sum and product do not calculate at each tiny change anymore, the calculation needs to be started by using the green RUN button
• the initial file with an example db for functions covers now the following Pi calculation:
• S(0;1000;f(n)=((-1)^n/4^n)*(2/(4*n+1)+2/(4*n+2)+1/(4*n+3)))
• S(0;10000;f(n)=4*((-1)^n)/(2*n+1))

Release Notes 2.2.0

• starting from this version fx-calc migrates existing data from the most recent previous version:
• history data
• saved constants
• function database
• few new events will lead to new history records
• an update of all dialogue windows is providing a consistent application design
• additional buttons support to copy data from the database windows into the calculators editor field
• adjustable font size in editor field

Release Notes 2.1.1

• fiexed handling of using the Enter-Key in the editor field
• runtime improvement for interpreter module
• design maintenance

Release Notes 2.1.0

• updated interpreter version to support more flexibility for mathematical terms
• for multiplications you can now type 2x insted of 2*x
• 2(2+y) is now working the same way as 2*(2+y)
• the interpreter is handling missing "*" automatically and this allows more flxible typing of terms
• new concept of calculation while you type your term, the "calculation" button isn't needed anymore

Release Notes 2.01

• improved handling for moving 3d plots with your mouse (hold left mouse button down)
• new automated version checking (threaded implementation)

Release Notes 2.0

• optimised OpenGL interface 
• no dependency on TAO Framework anymore
• much more compact windows installer, just 750 Kbyte instead of 33 MByte

Release Notes 1.08

• new interactive linear regression module
• few minor changes in dialoges 
• minor design adjustments

Release Notes 1.07

• issue with the use of brackets brackets and functions solved 

Release Notes 1.06

• siginficant improvement for 2d plots
• plots now a list of functions
• the function list is easy to manage
• each function in this plot list can have specific properties:
• if  it's first derivation shall be added to the plot
• deg / rad for trigonometric functions
• improved axis scaling

Release Notes 1.05

• Elimination of bugs and improved precision in integration modul
• improved methodology using data from function analysis
• elimination of logical errors 
• test by using other established software packages to compare results

Release Notes 1.045

• setup isn't replacing your existing constants db anymore
• the integrated web link connects automatically to the correct language version
• a small howto page was published and can be used from the linked site

Release Notes 1.044

• within 3D graphics you have now the possibility to define your own axis limits
• Windows 8 compatible

Release Notes 1.043

• within 2D graphics you have now the possibility to define your own axis limits, very beneficial for functions like f(x)=1/x
• few logical bugs in 2D graphics eliminated

Release Notes 1.042

• Bug fix in Interpreter allows now to use any combination of characters and numbers as variable identifier
• Examples are:
• x,y,x1,X1,sin1,ex23 ...
• don't use funktion names, special characters or just numbers

1.04 Release Notes

•      Integration of sum and product calculations
•      Tooltips for all functional elements
•      New look
•      Bug in function database fixed

1.03 Release Notes

•      Improvements required to the input in the text field of the calculator in combination with mouse use
•      Focus of the input field
•      cursor positioning
•      Bug in variable fields cleared (reset, new function with fewer variables)
•      Built-in browser to display the manufacturer's site (updates)
•      Revised list of local extremes, including minimum / maximum
•      Function interpreter with new compact interface
•      TAO OpenGL integrated in the setup
•      Optical adjustments in the 3D display, the calculator and the History

1.02 Release Notes

•      First version with integrated OpenGL accelerated 3D graphics
•      Successor to Windows 2000 Freeware SciCalc 3.x
•      Porting from Delphi to C #
•      New algorithms for the computation of zeros / Extrema that recognize and support points as f (x) = x ^ 2
•      closely aligned on dotnet standard

outlook

•      Implementation of symbolic calculus to refine and stabilize the process of curve sketching