There exist such a formula for large x:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\arctan(x)\approx \pi/2-1/x+1/3x^3...[/tex]

I can't understand how it is derived. I tried to get it from Taylor series (for x -> infinity) and understood that here is something different. Can someone help me?

Thank you

**Physics Forums - The Fusion of Science and Community**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Approximate formula

Loading...

Similar Threads for Approximate formula | Date |
---|---|

B Need some help with understanding linear approximations | Feb 17, 2018 |

A Integral equations -- Picard method of succesive approximation | Nov 14, 2017 |

I Taylor expansion of f(x+a) | Nov 1, 2017 |

Proving formula for approximation of a plane tangent to Z | Jun 12, 2013 |

Approximate formulas for integrals of Gamma functions? | Aug 30, 2010 |

**Physics Forums - The Fusion of Science and Community**