Changes

==Pi in mathematics==

==Pi in mathematics==

It's impossible to overestimate the importance of <big><math>\pi</math></big> (and [[e]])  for mathematics. Both values are intrinsically tied, e.g. by  [[Euler's identity]]

It's impossible to overestimate the importance of <big><math>\pi</math></big> (and [[e]])  for mathematics. Both values are intrinsically tied, e.g. by  [[Euler's identity]]

  <math> e^{\pi \imath} +1 = 0</math>.

  <math> e^{\pi \imath} +1 = 0</math>. Only God could of created a system where this formula makes half of Engineering a doddle.

==Recreation==

==Recreation==