Browse Apps with Geometry Expressions Source Files
Moving point
Circles, Tangents and Nonagon Diagonals
Binary Clock
Reflection of parallel rays
Morph curve depends on the parametrization of the circle
Example: Clock
Catapulting a Ball 
Circles, Tangents, and Heptagon Diagonals
Circle Equation
Vector Combinations and Span
Polar Proportional Point and Circle Puzzler 3
Tridecagon Diagonals, Circles and Tangents (BIG)
Two Circle Trace
Polar Proportional Point and Circle Puzzler 2
Kaleidoscope
Example: A Second Look at Euclid's Equilateral Triangle
Chord Angle Theorem
Morph a circle into a square
Simple Similar Triangles
Basic Derivatives
Epic Circle Trace 2
Example: Graphical Calculus Practice
Polar Proportional Point and Circle Puzzler
Apparent Plane Speeds
Inverse Function Slope Relation
Tangent to a Function
Parabolic Reflector
Example: Drawing an Ellipse
Trapezoidal Sum Rule
Cyclic Quadrilateral Theorem
Polar Rose: Mathematical Flower
Circle Radius and Proportional Position Puzzler
Hex Flower
Kaleidoscope clock
Example: Draggable Point on a Locus
Abacus Explained Properly
Example: Altitude of a Triangle
Abacus Explained
Morphing Clock
Approximation of a Parabola
Spin the Chrome Icon!
Example: Cosine Rule Assessment
Locus of intersection of reflected rays
Point Trilateration
Basic Unit Circle
Example: Area of a Triangle
Example: Pictures
Pythagorean Theorem Calculator
Demo
Hendecagon Diagonals, Circles and Tangents
Example: Euclid's Equilateral Triangle 
Morph a circle into a line
The Difference of Two Circles Is A Line
Epic Circle Trace
Epic Circle Trace 3
Binary Test
Tridecagon Diagonals, Circles and Tangents
Combination of Reflections through Parallel Lines
parabola envelope
Combination of Reflections through Oblique Lines
Demo
