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Physics problem look for ur help

  1. Jun 7, 2005 #1

    my assinment is to calulate number pi
    i do this pi=4*acrsin(sr(2)/2)

    u no other way to find number pi

    this asigmnent must be hand in tomorrow, i need urgent

  2. jcsd
  3. Jun 7, 2005 #2
    Among the most famous is the formula from Gregory and Leibniz:

    [tex]\pi = 4 - \frac{4}{3} + \frac{4}{5} - \frac{4}{7} + ...[/tex]

    A finite one is Machin's formula:

    [tex]\frac{1}{4}\pi = 4 arctan (\frac{1}{5}) - arctan(\frac{1}{239})[/tex]
    Last edited: Jun 7, 2005
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