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Browse apps with Geometry Expressions Source Files ~~~ Browse Apps with TI-Nspire Versions

An Arbelos Theorem

function product challenge 2

Ball Throw Modeled with Mechanical Expressions

Function Product Challenge 1

Nicomeded Conchoid Apparatus

Four Bar Linkage

Demo

Inverted Trammel 2

Derivative Test Concepts

Two ways of finding the Fermat Point

Inverted Trammel

Inverse Function Slope Relation

Protractor

Twisted Savonius Wind Turbine Full Geometric Model (without traces/surfaces)

Steiner Ellipses

Sliding Ladder Problem

Lecture11-DerivativeOfALine

Piano Moving 2

Wheeled Trebuchet

Quadratic Zeros

Scotch Yoke

Euclids Elements – Book 4 – Proposition 11

Combining Like Terms I

Oil Pipeline Problem

Relationship of Calculus and Golf

Kaleidoscope clock

And the envelope please...

September Problem

Parabola Parametrization

Four Bar Mechanism for Intermittent Drive

Morphing Clock

Tangents to Polar Functions

Reflection Clock

Death Star vs. Endor

Curve Area

A Ladder Problem

Pipeline Problem

Three Body Problem

Circles, Tangents and Nonagon Diagonals

A Median Theorem

Angle Bisector

Polar Line

watts up

Vector Combinations and Span

Ball Throw Animation

Spin the Chrome Icon!

Golden Section Construction

Tilted clock

Abacus Explained Properly

Derivative

Example: Draggable Point on a Locus

Rolling Wheel

Circle Proof

A Second Look at the Four Bar Linkage

Circumcircle Construction

Euclid Book 6 Proposition 8

Ellipse Reflection Property

unnamed2

Pirate Treasure

Scotch Yoke

Quadratic Zeros II

Square as a Sum

Residual Basics

Circle isotomic

Convex Concave

Prop33

Euclids Elements – Book 1 – Proposition 42

DG flower

October Problem

Taylor series

The Sine Function

Euclid Book 1 Proposition 36

Squeezing Twisted Savonius Wind Turbine Model

Hyperbola Polar Line

Nicomedes Construction for Cube Root

parabola envelope

Euclid Book 6 Proposition 31

Maximum Area Triangle

Reflection Composition

Ellipse Directrix

Vertical Dilations

Normal Distribution

Miller_Applet 6

Triangle Areas

Decline of Lions

Derivative

I beam

Hypocycloid

Crazy Clock

Area Under Sine (draggable)

The Spinning Dancer

Spline Clock

Golden Spiral Approximation

Quartic Bezier Curve

Tridecagon Diagonals, Circles and Tangents

Pappus Chain

Double Transforming Pentagons

Example: Area of a Triangle

A Three Body Problem

Tautochrone pendulum

Example: Drawing an Ellipse

Combination of Reflections through Parallel Lines

Quadratic Zeros III

Soda Cantastrophy

Ellipse as locus of circle center

Epic Circle Trace

Proof by Shear Transformation

giraffe graph

Cosine Rule

Proposition 3

Reflection Composition 2

Hyperbolic clock

Least Squares II

Tautochrone

Parallels and Reflections

Cycloid Clock

Euclid 1:47

incircle radius

Simpson Line

Fermat Toricelli

Catapulting a Ball

Locus of intersection of reflected rays

Morph a circle into a square

Minimum Distance

Four Bar Linkage

proof without words

Hyperbola Generalization

Morley's Theorem

Caustic Clock

Ellipse Parametrization

Example: A Second Look at Euclid's Equilateral Triangle

Parabola string art

Conic through 5 points

The Three Primary Types of Wind Turbine, Animated as if in Operation (High-Quality - Slow-loading)

Horizontal Shift

Distributive Property

cosine rule test

Pedal Triangles

Chord Angle Theorem

Newton Raphson 3 iterations

Cycloid is the Brachistochrone

Tchebychev's Straight Line Linkage

Not a spline

Function composition challenge 1

Crop Circles

Epicycloid

Minimum Perimeter Triangle

Tangent Lines

Caustic of y=f(X)

Function composition challenge 2

Discovering Pythagoras

Safeway Sales App (Josh Moffat)

Polar Point Parabola

Square wheeled bicycle

Apparent Plane Speeds

Coordinate Clock

Running For Miles

Euclids Elements - Book 3 - Proposition 14

Euclid Book 6 Proposition 19

Residual Plots II

Lissajous Figure

Body Temperature (degrees Fahrenheit)

Derivative

Calc is FUN!

Prop25v2

Abacus Explained

Epic Circle Trace 2

Miller_Applet 3

Parabola Property

Planet Orbit

Hendecagon Diagonals, Circles and Tangents

Combination of Reflections through Oblique Lines

Proposition 1

Gear pair

Parabola Directrix

Chord Product

The Goat and the Silo

Two Pendulums

The Ocean

Tangent Triangle

Sinusoidal Tangent Mirrors

circle intersections

Polar Point Ellipse

A Path round an elliptical pool

Euclid Book 2 Proposition 11

hyperbolic clock with explanation

Trebuchet

Angle Bisector

Maximum Perimeter Triangle

Drive in Movie Problem

Caustic Formation

Door Which Opens Both Ways

Alternate Hyperbola Construction

Beat the Brachistochrone

Four Bar Linkage

The Cosine Function

Rotating Cube

Pendulums

A geometry theorem

Double Pendulum

Focus Directrix Parabola

velez_aplet2

Reflection in a circle

4 bar linkage pendulum

Similar Triangle Incenter

Maximum range on a slope

A Chaotic Flywheel

Prop11

Parabola Caustic

Pascal's Limacon

Miller_Applet 1

Optimal Performance of Box Solar Cooker

Trammel Clock

Area of a Parallelogram

Pythagorean Theorem Calculator

Investigating Integrals through Polygons

A Locus Problem

String Art

Dreamcatcher

Miller_CCSS7G1

Nicomedes Conchoid Clock

Symmetric Antisymmetric Parts

Morph a circle into a line

Vector Addition

Spline Approximation

Area Under a 4 bar linkage

Kaleidoscope

Relation of tangent slope to derivative

Simplifying Expressions

Pool reflections

Geometric Top View Model of the Twisted Savonius Wind Turbine (Interactive)

Even and Odd Functions With a Tangent Twist

Watt's Linkage

Parallelogram area

Parametric Design

Simple Chaos Machine

Susino_Applet3

Equilateral triangle construction

Polar Proportional Point and Circle Puzzler 2

Moving point

Cevians

Basic Derivatives

Cosine Rule

Parabola Tangent Circumcircle

Area of a Triangle

Lifeguard Problem

Parabola Subnormal

Maximum Sum of Squares

Offcenter Cam*

Euclid Book 6 Proposition 15