Drexel dragonThe Math ForumDonate to the Math Forum


Math Forum
 Ask Dr. Math
 Discussions
 Internet Newsletter
 MathTools
 Problems of the Week
 Teacher2Teacher
 Teacher Exchange
 Workshops

Search All of the Math Forum:
Browse our Internet Mathematics Library

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » sci.math.* » sci.math.independent

Topic: Math trick? Angst's Theorem??
Replies: 12   Last Post: Dec 4, 2012 8:33 AM

Advanced Search
Reply to this Topic Reply to this Topic

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Poutnik

Posts: 68
Registered: 9/14/11
Re: Math trick? Angst's Theorem??
Posted: Nov 24, 2012 3:19 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply


Existential Angst from fitcat@optonline.net
posted Sat, 24 Nov 2012 03:14:21 -0500


>
> Try this on a calculator/spreadsheet:
>
> Take sq rt of 10, to as many places as poss.. Then take recip. What do you
> see?
> For the calculationally lazy: 3.162277660168 --> .3162277660168... !!!!
> Weird coincidence? Predictable??
> Angst's Theorem??

Why to search for mystery ?

1/x = x / 10
1 = x^2 / 10
10 = x^2
x = sqrt(10)


--
Poutnik

Current way of spaced quoting by GoogleGroups is disaster,
if combined with no quoting by some GG users.

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2013. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.