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2.0.9
[ Jean-Pierre Demailly ]
* Left button is now used to activate all functions through a popup menu
on the drawing canvas
* Scroll wheel is used to perform zoom in and zoom out, and right
button is used to translate the origin of coordinates
* Finding curve intersections and axes intersections had been disabled
as a result of a few buggy lines added in 2.0.8. This is now corrected
2.0.8
[ Jean-Pierre Demailly ]
* Derivation and integration can now be iterated
2.0.7
[ Jean-Pierre Demailly ]
* Normal law cumulated distribution function phi(x) introduced
* Numerical integration via 5-point Gauss-Legendre method
* A few further bugs have been corrected
2.0.6
[ Jean-Pierre Demailly ]
* geg now has a mode dedicated to representing discrete sequences.
* geg-2.0.6 includes the possibility of introducing user defined
functions, computing numerically their derivatives and tangents.
* Almost all parameters are now accessible by suitable hooks in
the symbolic formalism, and can thus be set from the calculation
sheets. Linewith and color of curves can be set in this way, as
well as the size and color of tangents. The coord() function
has been deprecated. See the help file for details.
* The coordinate grid can be drawn or hidden
* The package incorporates several examples of calculation sheets.
* Many substantial bugs have been ironed out.
2.0.5
[ Jean-Pierre Demailly ]
* geg can now open and save *.geg files reproducing all calculations
entered in sequence via the bottom command line. They can be used
to store a given arrangement of curves along with the selected
colors and scaling parameters.
* A new coord() function has been introduced to switch the cartesian/
polar/parametric modes programmatically in a sequence of function
calls.
2.0.4
[ Jean-Pierre Demailly ]
* Fixed some minor issues in radio buttons (GTK bug due to deprecation ?)
* Slight improvement in GUI presentation
2.0.3
[ Jean-Pierre Demailly ]
* All preferences are now configurable, including colors
* Builtin parameters can be recovered from the GUI
* Zoom functions now have orthonormal mode
* Version posted to Sourceforge
2.0.2
[ Jean-Pierre Demailly ]
* Improved behavior of event reporting in log window
* Width of log window and text entries slightly increased
2.0.1
[ Jean-Pierre Demailly ]
* Polar mode added: t-->r(t)
* Equation solver added
* external utilities can now be set through preference GUI
* various fixes (some issues were causing occasional segfaults ...)
* help system fixed and localized
2.0.0
[ Jean-Pierre Demailly ]
* Printing can be made either through PDF or SVG
* Parametric mode added: t-->(x,y)
* Formula parser enhanced: variables a-z can now be used as parameters
* Log window behavior fixed
* Port to GTK2 thanks to the work of Barry deFreese
1.0.2
* Fixed precedence of '-' (thanks to Torsten Landschoff)
* Added manpage (ditto)
1.0.1
* Fixed infinite configure bug that occured with recent versions of GTK+
* Fixed precedence level of '^' operator (thanks to Kris Jurka)
* Fixed cursor sizes of zoom/function intercepts/axis intercepts cursors
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