Four bottles - Equidistant mouth problems
How to place four identical bottles in the plane such that the distance between each pair of mouths will be the same?
Fibonacci Sequence, A Pattern of Natural Beauty
The sequence of Fibonacci can be found everywhere in nature. In this post introduce some of its fundamental properties...List of Computer tools in mathematics
The following list links to free computer tools for mathematics.Free Textbooks in Mathematics
The following is a list of links to useful textbooks in mathematics, available for free on the Internet. All books are legally safe to download, The books are in printable format - Postscript (PS) or Portable Document Format (PDF). You are free to download, read and print them. This is a partial list of "free textbooks" in math, the list is to be updated regularly.The circle of Apollonius
By definition, a circle is the locus of all points equidistant from a fixed center. However, the circle of Apollonius is defined differently. In the following post I will define and construct an Apollonian circle.How many squares can be found here?
