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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,657

I have been a little Geometric of late, and have produced:

Ellipse and Perimeter of Ellipse

Conic Sections (those images took over a day, using PovRay)

I hope you all enjoy reading, and I would also value a critical mathematical eye to correct any mistakes (I am only human!)

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**mikau****Member**- Registered: 2005-08-22
- Posts: 1,504

I like it! The conic sections are awesome, and i never knew that ellipse perimeter couldn't be solved with integration. Very cool!

A logarithm is just a misspelled algorithm.

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**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

Ooh, these look very interesting. Some of the most advanced pages you've done, particularly the one on the perimeter of an ellipse. I can't see any mistakes though, although that could be because some of it's over my head.

For example, what on Earth are half-integer factorials all about?

Why did the vector cross the road?

It wanted to be normal.

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,657

(1/2)! etc, the Gamma function deals with them. Very interesting subject, and I hope (one day) to write a page about it

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,657

I added a small section about it to the end of the page on Factorial Function !

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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**bossk171****Member**- Registered: 2007-07-16
- Posts: 305

What about the latus rectum?

There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction.

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,657

Good suggestion, thanks

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