Things that have bothered you for a long time.

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Dave7

Legendary Member
Location
Cheshire
Fixedthatforyou. The problem was they only showed bones - no undies.

Therefore I never ordered a pair :sad:

The ones I had showed undies and lots of other things.

Mind you I was 13 years old with an amazing imagination 🙂
 

T4tomo

Legendary Member
Long division would be better than a calculator if you want loads of decimal places as paper is better as displaying a long number than a calculator!!

Yebbut pi is the ratio of a circle's diameter to its circumference. Who has ever measured either accurately enough to work out C/D to several millions of decimal places?

22/7 gives the wrong result as Pi is irrantional. however you can do it longhand with an infinite series such as gregor-leibnitz
  • π=(4/1)-(4/3)+(4/5)-(4/7)+(4/9)-(4/11)+(4/13)-(4/15) ⋯
or Nilakantha (which gets more accurate more quickly)
  • π=3+4/(2·3·4)-4/(4·5·6)+4/(6·7·8)-4/(8·9·10)+4/(10·11·12)-4/(12·13·14) ⋯
both the above approach Pi as you do more and more iterations.

A computer helps if you want to run many iterations!
 

Jameshow

Veteran
Long division would be better than a calculator if you want loads of decimal places as paper is better as displaying a long number than a calculator!!



22/7 gives the wrong result as Pi is irrantional. however you can do it longhand with an infinite series such as gregor-leibnitz
  • π=(4/1)-(4/3)+(4/5)-(4/7)+(4/9)-(4/11)+(4/13)-(4/15) ⋯
or Nilakantha (which gets more accurate more quickly)
  • π=3+4/(2·3·4)-4/(4·5·6)+4/(6·7·8)-4/(8·9·10)+4/(10·11·12)-4/(12·13·14) ⋯
both the above approach Pi as you do more and more iterations.

A computer helps if you want to run many iterations!

Honestly never bothered me!!🤣🤣🤣
 
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