Release Notes GeoGebra 5.0

This page gives an overview of the new features in GeoGebra 5.0 since version 4.0. Please see our fully revised Manual:Main Page document for more detailed descriptions of each new tool and command.

You can install the stable version of GeoGebra 4.0 by using our Webstart or Download option.

Information about how to run the 5.0 Beta version (with 3D) is in our user forum.

GeoGebra 5.0 will not run on Java 1.4.2, so you need to install at least Java 5 from java.com

New Tools

• Plane
• Right prism
• Sphere
• View in front of

New Features

Extended types to 3D

• Points

eg A=(5,-2,1)

• Vectors

eg u=(5,-2,1)
eg Cross product: a = u ⊗ v 

• Lines
• Segments
• Rays
• Polygons
• Circles

New Object Types

Surfaces

 eg f(x,y) = sin(x * y)
 eg Function[sin(a * b), a, -5, 5, b, -5, 5]

Planes

 eg x + y + z = 1

3D View

Applets

• 3D export to applets is not supported at the moment

Moving objects

• left-drag points in the 3D view. Click on the point to change the mode "along xOy plane" to "along z axis", and so on.

Translation of the scene

• shift+left-drag the 3D view (without pointing on a moveable object)
• use move view tool

Rotation of the scene

• "Rotate 3D graphic view" tool
• right-drag the 3D view (without pointing on a moveable object)
• continue rotation when mouse released
• view in front of an object (toolbar)

Zoom

• use wheel mouse
• use zoom tool

Gridlines

• show/hide axes, grid, xOy plane

Commands

Improved Commands

All commands below works with 2D/3D objects

• Midpoint[ <Point> , <Point> ]
• Intersect[ <Line> , <Line> ]
• Intersect[ <Line> , <Segment> ], etc.
• Intersect[<Line>, <Conic>]
• Intersect[<Conic>, <Conic>]
• Vector[ <Point> , <Point> ]
• Line[ <Point> , <Point> ], Segment[ <Point> , <Point> ], etc.
• Line[ <Point> , <Line> ], Line[ <Point> , <Segment> ], etc.
• PerpendicularLine[ <Point> , <Line> ]

 (will set output line to undefined if point is on the line)

• Circle[ <Point> , <Point> , <Point> ]
• Distance[ <Point> , <Point> ]

New Commands

Points

• Intersect[ <Line> , <Plane> ] creates the intersection point of a line and a plane (also works with segments, polygons, etc.)

Lines

• Intersect[ <Plane> , <Plane> ] creates the intersection line of the two planes
• PerpendicularLine[ <Point> , <Plane> ] creates the line through the point and perpendicular to the plane (works also with polygons, etc.)
• PerpendicularLine[ <Linet> , <Line> ] creates the line perpendicular to both the lines.

Vectors

• OrthogonalVector[ <Plane> ] creates a vector orthogonal to the plane
• UnitOrthogonalVector[ <Plane> ] creates a unit vector orthogonal to the plane

Circles

• Circle[ <Line>, <Point> ] creates the circle with line for axis and through the point
• Circle[<Point>,<Radius>,<Direction>] create circle with center, radius, and axis parallel to direction, which can line, vector or plane (in this case : normal vector of the plane)
• Circle[<Point>,<Point>,<Direction>] creates a circle with center, through a point, and axis parallel to direction (may be undefined)

Conics

• Intersect[ <Plane>, <Quadric> ] creates the conic intersection of the plane and the quadric (sphere, cone, cylinder, ...)

Planes

• Plane[ <Point> , <Point> , <Point> ] creates the plane the points
• Plane[ <Point> , <Line> ] creates the plane through the point and the line
• Plane[ <Point> , <Plane> ] creates the plane through the point and parallel to the plane
• PerpendicularPlane[ <Point> , <Line> ] creates the plane through the point and perpendicular to the line
• PerpendicularPlane[ <Point> , <Vector> ] creates the plane through the point and perpendicular to the vector
• PlaneBisector[ <Point> , <Point> ] create the plane orthogonal bisector between the two points
• PlaneBisector[ <Segment> ] create the plane orthogonal bisector of the segment

Spheres

• Sphere[ <Point> , <Number>] creates a sphere with center and radius
• Sphere[ <Point> , <Point> ] creates a sphere with center and point through

Cylinders and cones

• Cylinder[ <Point>, <Point>, <Radius Number> ] creates a cylinder of revolution between the two points, and with number for radius
• Cone[ <Point>, <Point>, <Radius Number> ] creates a cone of revolution between the two points, with disc around first point and of given radius, and with second point for apex
• Bottom[ <Limited quadric> ] creates the bottom of the limited quadric (e.g. circle for a cylinder)
• Top[ <Limited quadric> ] creates the top of the limited quadric (e.g. circle for a cylinder)
• Side[ <Limited quadric> ] creates the side of the limited quadric

Quadrics

• InfiniteCylinder[ <Point> , <Vector>, <Radius Number> ] creates a cylinder of revolution around (point,vector) direction, and with number for radius
• InfiniteCylinder[ <Point>, <Point>, <Radius Number> ] creates a cylinder of revolution around (point,point) direction, and with number for radius
• InfiniteCylinder[ <Line>, <Radius Number> ]creates a cylinder of revolution around line direction, and with number for radius

• InfiniteCone[ <Point> , <Vector>, <Angle Number> ] creates a cone of revolution around (point,vector) direction, with point for apex, and with number for angle (half-angle of the cone)
• InfiniteCone[ <Point>, <Point>, <Angle Number> ] creates a cone of revolution around (point,point) direction, with point for apex, and with number for angle (half-angle of the cone)
• InfiniteCone[ <Point>, <Line>, <Angle Number> ] creates a cone of revolution with point for apex, with axis parallel to line, and with number for angle (half-angle of the cone)

Polyhedrons

• Pyramid[ <Point> , <Point> , ... , <Point> ] : pyramid

 eg Pyramid[A,B,C,D] creates the pyramid with basis ABC and apex D

• Prism[ <Point> , <Point> , ... , <Point> , <Point> ] : prism

 eg Prism[A,B,C,D] creates the prism with basis ABC and top DEF, vectors AD, BE, CF are equal

• Prism[ <Polygon> , <Number> ] : right prism with polygon for basis and number for altitude

Curves, surfaces

• Curve[ <expression in t for x coord> , <expression in t for y coord> , <expression in t for z coord> , <t> , <t min> , <t max> ]
• Surface[ <expression in u, v for x coord> , <expression in u, v for y coord> , <expression in u, v for z coord> , <u> , <u min> , <u max>, <v> , <v min> , <v max> ]

New Keyboard Shortcuts

Description of all Keyboard Shortcuts

New Applet Parameters

Description of all Applet Parameters

New Command Line Arguments

Description of all Command Line Arguments

New JavaScript commands

Description of all GeoGebra JavaScript Methods

GeoGebra's XML File Format

GeoGebra's XML file format is documented at Reference:XML.

License

You are free to copy, distribute and transmit GeoGebra for non-commercial purposes. Please see the GeoGebra license for details: http://www.geogebra.org/download/license.txt

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