| Version | Date (dd/mm/yyyy) | Enhancement / Revision / Correction |
| 2.8.0 | 27/06/2006 | 1. Fixed the hintlines in exercise 71A 2. Added feature to disable marking comments 3. Corrected the hotspot movement in exercise 43 4. Re-positioned the help window in exercise 41 5. Revised exercise 44 to display marking ticks, help window and equations correctly 6. Improved the display of help in sections 71, 72, 73 and 74 7. Made minor cosmetic corrections to sections 14, 15, 21, 24, 25, 27, 28, 31B, 61, 62, 63, 66, 81 and 82 8. Fixed the "blank screen" issue when Alt+Tab is pressed |
| 2.7.3 | 18/01/2006 | 1. Revised helptext in exercise 72A |
| 2.7.2 | 17/10/2005 | 1. Fixed "Divsion by zero" runtime error in exercise 22/A 2. Removed incorrect tangent line when plotting circles in exercise 17 3. Added password protection to the database |
| 2.7.0 | 29/07/2005 | 1. Fixed memory leak in FloodFill procedure |
| 2.6.5 | 15/07/2005 | 1. Added support for widescreen laptops |
| 2.6.4 | 14/06/2005 | 1. The circle drawing functions have been
totally re-written to scale more accurately with the other graph drawing
functions. 2. Graphs 62 incorrectly drew all circle with a radius rounded to the nearest whole number. |
| 2.6.3 | 30/05/2005 |
1. Graphs 84 did not display the negative exponential graphs. |
| 2.6.0 | 17/03/2005 | 1. Graphs 92 had extra colons for no reason.
These have been removed. 2. Various exercises have been modified to use a country dependent list separation symbol. |
| 2.5.8 | 03/03/2005 | 1. Many exercises have been updated to use a country dependant symbol for co-ordinate separation e.g. (x; y) and (x, y) |
| 2.5.7 | 01/02/2005 | 1. Graphs-35 had 'gradient' where it should have been 'gradients'. |
| 2.4.3 | 12/10/2004 | 1. Graphs 75 gave the hint "Subtract
the straight line from the parabola", even when it was more logical
to "Subtract the parabola from the straight line". 2. Graphs 74 now no longer displays numbers on the axis as there were often too many numbers to see some points clearly. 3. Graphs 74 also sometimes did not display the point 'D", and it was not clear what 'D' was. D is now always drawn in is the x-intercept of the straight line. |
| 2.3.4 | 18/08/2004 | 1. Graphs 71 gave the length of the line 'H',
instead of 'OH'. 2. 'and' was used instead of 'en' in the Afrikaans in Graphs 71. |
| 2.2.3 | 22/06/2004 | 1. Whilst in 'Test' mode, the progress counters on the left occasionally reset to "0/0". This has been corrected. |
| 2.0.0 | 15/03/2004 | 1. An inaccuracy in the timing of exercises resulted in incorrect times being recorded. This has been corrected. |
| 1.2.2 | 02/03/2004 | 1. Graphs 27 occasionally drew graphs incorrectly. This has been rectified. |
| 1.1.0 | 11/12/2003 | 1. All the modules are now complete. |
| 1.0.0 | 24/10/2003 |
1. Many new exercises. |