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2. Nankang Rubber Tire - Wikipedia

   en.wikipedia.org/wiki/Nankang_Rubber_Tire

   Nankang Rubber Tire Corporation Ltd is the largest established tire manufacturer in Taiwan, having been started in 1940 by a group of engineers. [ citation needed ] Based originally upon the principles of Japanese manufacturing technologies, the company has grown substantially.

3. Pythagorean triple - Wikipedia

   en.wikipedia.org/wiki/Pythagorean_triple

   A primitive Pythagorean triple is one in which a, b and c are coprime (that is, they have no common divisor larger than 1). [1] For example, (3, 4, 5) is a primitive Pythagorean triple whereas (6, 8, 10) is not. Every Pythagorean triple can be scaled to a unique primitive Pythagorean triple by dividing (a, b, c) by their greatest common divisor ...

4. Tree of primitive Pythagorean triples - Wikipedia

   en.wikipedia.org/wiki/Tree_of_primitive...

   These are precisely the inradii of the three children (5, 12, 13), (15, 8, 17) and (21, 20, 29) respectively. If either of A or C is applied repeatedly from any Pythagorean triple used as an initial condition, then the dynamics of any of a, b, and c can be expressed as the dynamics of x in

5. Pell number - Wikipedia

   en.wikipedia.org/wiki/Pell_number

   If a right triangle has integer side lengths a, b, c (necessarily satisfying the Pythagorean theorem a 2 + b 2 = c 2), then (a,b,c) is known as a Pythagorean triple. As Martin (1875) describes, the Pell numbers can be used to form Pythagorean triples in which a and b are one unit apart, corresponding to right triangles that are nearly isosceles.

6. Formulas for generating Pythagorean triples - Wikipedia

   en.wikipedia.org/wiki/Formulas_for_generating...

   Moreover, (x, y, z) is a primitive Pythagorean triple if both of the following conditions are verified: [14] if x is odd then d is a square and { d , x 2 / d } are coprime odd integers, and if x is even then d /2 is a square and { d /2, x 2 /2 d } are coprime integers of different parities.

7. Pythagorean theorem - Wikipedia

   en.wikipedia.org/wiki/Pythagorean_theorem

   In other words, a Pythagorean triple represents the lengths of the sides of a right triangle where all three sides have integer lengths. [1] Such a triple is commonly written (a, b, c). Some well-known examples are (3, 4, 5) and (5, 12, 13). A primitive Pythagorean triple is one in which a, b and c are coprime (the greatest common divisor of a ...