geometryatlas.com
Incircle and Circumcircle of an Equilateral Triangle
http://www.geometryatlas.com/entries/43
Incircle and Circumcircle of an Equilateral Triangle. Download Geometry Expressions File. The radius of the inscribed circle and circumscribed circle in an equilateral triangle with side length 'a'. Both circles have the same center. All Geometric Content created by Geometry Expressions.
geometryatlas.com
Geometry Atlas
http://www.geometryatlas.com/index.php
There is no Golden Road to Geometry." - Stobaeus. But at least now there is an atlas. Welcome to the web's largest collection of geometric formulas and figures, all available in MathML, Maple and Mathematica input and Geometry Expressions files. All of the expressions and figures on this site were created using the interactive symbolic geometry software Geometry Expressions. Curves of High Degree. Equation of the Conic through Five Given Points. 1 Area and Perimeter of a Regular Oct.
geometryatlas.com
Categories
http://www.geometryatlas.com/category.php
2 Known Sides and 2 Known. Short Diagonals of a Regu. Area of a Circle. Triangle Formed by Tangen. All Geometric Content created by Geometry Expressions.
lorentzframe.blogspot.com
The Lorentz Frame: Velocity Addition for Free
http://lorentzframe.blogspot.com/2006/09/velocity-addition-for-free.html
Continuation of older blog at http:/ weblogs.asp.net/brianbec Everything to do with physics, mathematics, computing, simulation, programming languages, and so on. Tuesday, September 12, 2006. Velocity Addition for Free. Ever go through the traditional derivation of the relativistic formula for addition of velocities? Painful, because there are a bunch of things you have to hold in your head for the duration of a calculation. Modern tools make this easy, almost obvious. First, recall this sketch:.
geometryatlas.com
Area and Perimeter of a Regular Octagon
http://www.geometryatlas.com/entries/191
Area and Perimeter of a Regular Octagon. Download Geometry Expressions File. The area and perimeter of a regular octagon with side length 'a'. All measures of the interior angles of a regular octagon are 3*π/4, or 135 degrees. All Geometric Content created by Geometry Expressions.
geometryatlas.com
Geometry Expressions
http://www.geometryatlas.com/ge.php
All of the images and expressions in the atlas were created using the software Geometry Expressions. A free demo version of the software is available here. We invite you to download the demo and try to create your own atlas entries. The front-end of Geometry Expressions. All Geometric Content created by Geometry Expressions.
geometryatlas.com
Equation of a Circle
http://www.geometryatlas.com/entries/25
Equation of a Circle. Download Geometry Expressions File. The general equation of a circle with center (h,k) and a radius of r units:. This equation is the non-factored version of (X-h) 2 (Y-k) 2 = r 2. All Geometric Content created by Geometry Expressions.
geometryatlas.com
Median, Angle Bisector, and Altitude of an Equilateral Triangle
http://www.geometryatlas.com/entries/46
Median, Angle Bisector, and Altitude of an Equilateral Triangle. Download Geometry Expressions File. The length of the median, angle bisector, and altitude of an equilateral triangle with side length 'a'. In an equilateral triangle, the median, angle bisector, and altitude are equal. Also, they intersect at point G, the center of the inscribed and circumscribed circle. All Geometric Content created by Geometry Expressions.
geometryatlas.com
Long Diagonals of a Regular Hexagon
http://www.geometryatlas.com/entries/187
Long Diagonals of a Regular Hexagon. Download Geometry Expressions File. The diagonals of a regular hexagon with side length 'a'. The intersection of the diagonals, point G, is also the center of the incircle and circumcircle. Also, notice that the diagonals divide the hexagon into 6 equilateral triangles. Side of equilateral triangle ABG. All Geometric Content created by Geometry Expressions.