I'm 16 and in high school. I've never taken physics or anything before.(adsbygoogle = window.adsbygoogle || []).push({});

I have this equation that shows that pi = infinity times zero

Ok.

So if u take a circle with a diameter of 1 and draw equal spaced radius' and connect them you get a polygon with all equal sides.

the more radius' you draw the more sides the polygon has and the closer the perimeter gets to pi

the formula for the perimeters of these polygons is:

n(-.5(cos(360/n)-1))^.5

where n is the number of sides of the polygon

as n gets larger and larger in this equation it approaches pi. Like if you make n = 1000 you get the first 5 digits of pi correct.

we can say then that:

infinity(-.5(cos(360/infinity)-1))^.5 = pi

360/infinty = 0 and cos(0) = 1

so this simplifies to...

infinity(-.5(1-1))^.5 = infinity(-.5(0)^.5) = infinity(0)

so therefore

infinity(0) = pi

my calculater says infinity(0) is undefined so i don't get it.

How am i wrong?

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

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

# Infinity times zero equals pi

Loading...

Similar Threads - Infinity times zero | Date |
---|---|

B Infinity times zero | Jan 25, 2017 |

Does infinity need time? | Sep 28, 2009 |

Behaviour of Algorithms at Time at Infinity | Jul 11, 2006 |

Infinity times Zero? | Jun 3, 2006 |

Zero times infinity | Apr 27, 2006 |

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