Mathematics-Mobius Strip

Mobius Strip / Mobius Band is a surface with only one side and only one boundary region. It is also known as Mobius or Moebius. It satisfies the non-orientable mathematical property.

It was discovered by German mathematicians August Ferdinand Mobius and Johann Benedict Listing in 1858.

It can be created by taking a paper strip & giving one of two ends of the strips a half twist and then joining the both ends of the strip together to form a loop.

Based on the way it is twisted, classified as two
     1 ) clockwise
     2 ) Counter - clockwise

Mobius band's Euler Characteristics is Zero.
          [ Note :: Euler Characteristics -The algebraic topology in  mathematics, Euler characteristics is a topological invariant. It is denoted by using the symbol χ. It denotes a number that describes a topological space's shape regardless of the way it is bent. It is calculated using the formula,  χ = V - E + F
  => V = number of vertices
  => E = number of edges
  => F = number of faces ]

Using parametrization,  x (r,s) = [ 1 + (s/2)cosr/2] cos r
                                       y (r,s) = [ 1 + (s/2)cosr/2] sin r
                                       z (r,s) = s/2 sin r/2

Where 0 ≤ r ≤ 2∏ & -1 ≤ s ≤ 1. It creates a mobius band of width 1 & whose center circle radius 1, lies in xy plane and is centerd at (0, 0, 0)