GeoGebra is the weekend udkommet a new version. You can laesa about nogle af the ændringer and improvements, who have come to. There is enough that being happy in this new version.
Update:At first version 4.2.1.0, but at the time of writing a new version has been released 4.2.2.0.
Update: Another new version 4.2.3.0
New in version 4.2 – Lille oversigt
Faster code – Store dele af koden er blevet skrevet om, making calculations m.m. faster.
CAS
Now the long-awaited CAS has arrived in GeoGebra. Here, it is possible to get GeoGebra to e.g. obtain the solution to the equation,, shortening fractions, find out whether a number is prime, m.m.
By features I can mention:
ErPrimtal[ <numbers> ] Next Prime[ <numbers> ] Previous Prime[ <numbers> ] Divisors[ <numbers> ] Divisorliste[ <numbers> ] Divisorsum[ <numbers> ] TilfældigPolynomium[ <Grade>,<Minimum Coefficients>,<Maximum of Coefficients> ]
Prøv at skrive “2x+4 = 5x+6” i CAS-vinduet. Do not press Return / Enter, but only in the 
New Tool
Freehand form 
Graphical adjustments
Enjoy desktop icon – Nu med hvid baggrund.
Small adjustments here and there. Eg. flottere ikon til “Pen værktøj” 
Grids and axes have now disappeared from the View menu. Det kan dog stadig findes ved at højreklikke på “Tegneblokken” og vælge “Mesh / Axes“.
Derudover there come mulighed to select the desired perspective Axle side af program. Tryk the field Axle page and get a menu up with forskellige Maad that distribute key holders on.
The red field by key founders of værktøjslinjen budding now surrounded af a gray circle.
Skift Stilbjælke – Under værktøjslinjen kan man nu i venstre side, opposite side of the page previously, see the icon 
Når man tegner med “Pen værktøj” 
Button opportunities – Det er nu muligt at bruge et billede på knapperne. Either standard buttons or own image (Choose from file). Find it by right-clicking the button and choosing Properties. Derefter vælges fanebladet “Stil”.
The Save button is gone – Nu er knappen væk fra indstillingerne, når man fx højreklikker på Tegneblokken og vælger “Tegneblok…” (former properties). Previously created also more confusion than good.
More setting options
For example, you can now easily change the layout using. buttons in Properties. Højreklik på Tegneblokken og vælg “Egenskaber”.
Change between degrees and radians.
New Features
There has been a lot of new features to the input field (you turn the input field to the submenu show). The entire 93 Total. Most of the work on statistics.
See in particular.
Median[ <List of Raw Data> ] Box Plot[ <yOffset>, <ySkalering>, <List of Raw Data> ] Triangle Center[ <Point>, <Point>, <Point>, <numbers> ] TrekantsCurve[ <Point>, <Point>, <Point>, <equation> ] Withered[ ] VisAkser[ ] TælHvis[ <Condition>, <List> ] pindediagram[ <List of points> ]
Other
The analytical tools in the spreadsheet – Enkeltvariabelanalyse og To variabel analyse-værktøjerne er begge blevet opdaterede.
New keyboard shortcuts – En del nye tastatur-genveje er kommet til i den nye version.
Java – Nye JavaScript-kommandoer.
Trappediagram – Nu kan man lave trappediagrammer vha. input field. Skriv fx trappediagram…, you can see the forskellige muligheder.
Input Fault History – Tryk pil op på tastaturet og få vist de seneste kommandoer.
Algebra-vinduet
Værktøjer – Der er nu nye muligheder for at dele sine egne værktøjer, som er lavet under menuen “Værktøj”.
Part fx knapper.
Forbedrede værktøjer:
Several improvements and changes to the buttons with vectors.
You can find a list of all the updates on the following link: