So what have you learned today?

BoyBlue_1985 said:
SWP's back said:
Second Skin said:
No, who is markt85?
Someone else who gets thing wrong.

22/7 is not pi

In fairness rounded down to 2 decimal points it is but in total it is completely wrong

This reminds me of that 0.9r equalling 1.

Proofs of the famous mathematical result that the rational number 22/7 is greater than π (pi) date back to antiquity. One of these proofs, more recently developed but requiring only elementary techniques from calculus, has attracted attention in modern mathematics due to its mathematical elegance and its connections to the theory of diophantine approximations. Stephen Lucas calls this proof, "One of the more beautiful results related to approximating π". Julian Havil ends a discussion of continued fraction approximations of π with the result, describing it as "impossible to resist mentioning" in that context.
The purpose of the proof is not primarily to convince its readers that 22/7 (or 31⁄7) is indeed bigger than π; systematic methods of computing the value of π exist. If one knows that π is approximately 3.14159, then it trivially follows that π < 22/7, which is approximately 3.142857. But it takes much less work to show that π < 22/7 by the method used in this proof than to show that π is approximately 3.14159.
 
gaudinho's stolen car said:
BoyBlue_1985 said:
SWP's back said:
Someone else who gets thing wrong.

22/7 is not pi

In fairness rounded down to 2 decimal points it is but in total it is completely wrong

This reminds me of that 0.9r equalling 1.

Proofs of the famous mathematical result that the rational number 22/7 is greater than π (pi) date back to antiquity. One of these proofs, more recently developed but requiring only elementary techniques from calculus, has attracted attention in modern mathematics due to its mathematical elegance and its connections to the theory of diophantine approximations. Stephen Lucas calls this proof, "One of the more beautiful results related to approximating π". Julian Havil ends a discussion of continued fraction approximations of π with the result, describing it as "impossible to resist mentioning" in that context.
The purpose of the proof is not primarily to convince its readers that 22/7 (or 31⁄7) is indeed bigger than π; systematic methods of computing the value of π exist. If one knows that π is approximately 3.14159, then it trivially follows that π < 22/7, which is approximately 3.142857. But it takes much less work to show that π < 22/7 by the method used in this proof than to show that π is approximately 3.14159.

I remember the 0.9r thread. Should have been a classic. The OP seriously lost his cool as I recall?
 
BoyBlue_1985 said:
SWP's back said:
Second Skin said:
No, who is markt85?
Someone else who gets thing wrong.

22/7 is not pi

In fairness rounded down to 2 decimal points it is but in total it is completely wrong

Thats like saying that "car" and "carbon" are the same thing as they start with the same three letters.

22/7 is not pi.

It is similar but not the same.
 
SWP's back said:
BoyBlue_1985 said:
SWP's back said:
Someone else who gets thing wrong.

22/7 is not pi

In fairness rounded down to 2 decimal points it is but in total it is completely wrong

Thats like saying that "car" and "carbon" are the same thing as they start with the same three letters.

22/7 is not pi.

It is similar but not the same.


Let me start by saying i agree 22/7 is not pi but, the thing in bold is not the same thing. With maths you often care about precision. If you don't need very high precision then 22/7 could as well be pi. It all depends on the precision you need. As an example take 7*pi vs 7*22/7. What you get is (approximately ) 21.991 vs 22.0. If say you are doing integer calculations then 21.991 is 22 (round up).


(On another note 0.9r is equal to 1)
 
Peonies should be planted at no greater depth than 2" below soil surface. Planting them too deep causes many to fail and perpetuates the myth that peonies are fragile and sulky when relocated.

Sounds gay, but it put my mother in law in her fucking place while she tried to give me shit gardening advice she'd read in Woman's Weekly.
 

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