Dear friends,

GeoGebraCAS 3.3.56.0 is available via

http://geogebra.uni.lu/trac/wiki/GeoGebraCAS

Latest changes:

• Synchronization of variables: Functions and variable definitions are now automatically synchronized between GeoGebraCAS and the rest of GeoGebra, e.g. you can define a function f(x) := x2 or variable a := 5 in GeoGebraCAS or the GeoGebra input bar and it will be available everywhere. If you then delete f(x) or a in GeoGebra, it will be undefined in GeoGebraCAS afterwards too. In GeoGebraCAS, you can delete objects by using e.g. Delete[f] or Delete[a]
• Assignment convenience: GeoGebraCAS requires := notation for assignments in order to distinguish an assignment a := b + 5 from an equation a = b + 5. In order to help the user, an input like f(x) = x2 is now automatically rewritten as f(x) := x2, and a = 5 is rewritten as a := 5.
• Suppress output: a semicolon at the end of the input line keeps the output hidden. This is useful to suppress the output of assignments, e.g. a := 5;
• fixed: g(x) := Derivative[x2], then g(2) now works correctly. Internally, the right hand side of an assignment is now always evaluated first.
• fixed: Factor command improved: Factor[ a2 + 2 a b + b2 ] now gives (a+b)2
• includes MathPiper update .78f

Best wishes, Markus