INFOUNTAIN.NET

Che cos'è il numero pi?

PI è un numero molto interessante che è di grande importanza per qualsiasi processo matematico. In molti calcoli di matematica, per esempio; Si incontra il numero di pi, come cerchi, molle, pendolo...

 

Generalmente, il numero più semplice di pi è ampiamente usato, anche se non significa molto. Questo numero è in realtà un rapporto e si ottiene dal diametro del perimetro del cerchio. Questo tasso è conosciuto come 3,14. È possibile misurare da soli, come trovare qualsiasi oggetti circolari a casa, ma assicurarsi che sia il più grande possibile. Diciamo solo che hai un bicchiere, se misuri la circonferenza del vetro prima e poi Dividi il diametro, Ottieni sempre il risultato di 3,14. Naturalmente, è necessario fare una misura molto precisa per il fatto che il risultato è vicino.

 

La prova di pi corrisponde ad una distanza di 4 pollici quando un cerchio con un diametro di 1,27 pollici è aperto linearmente. 4 pollici (perimetro)/1.27 (diametro) = 3,14 come concordato.

 

Come si è visto, il numero di pi è essenzialmente una base molto semplice ed è un tasso costante che non può essere cambiato. Ma poiché pi è anche un numero irrazionale, non può mai essere espresso in uno schema intero finito e contiene un numero infinito di numeri ripetuti dopo una virgola. Dal momento che i Babilonesi, sono noti per essere consapevoli dell'esistenza di pi in Medio Oriente e civiltà mediterranee. Diverse civiltà antiche hanno usato numeri diversi per il numero di pi. Per esempio, a causa del 2000 a.c., i Babilonesi stavano usando π = 3 1/8 e gli antichi Egizi erano π = 256/81, cioè circa il 3, 1605. Tuttavia, non è capito che πis un numero irrazionale per un tempo molto lungo. Nel 1761, le prove pubblicate da Johann Heinrich Lambert dimostrarono di essere un numero irrazionale di costanti. Nell'uso quotidiano, ci è un numero infinito di cifre che non ripetono periodicamente per esprimere il valore allineare, anche se è espresso semplicemente come 3,1416. La virgola si alza fino alle prime 65 cifre sono le seguenti:

 

3, 14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 5923


 

Oggi, si tengono diverse competizioni per calcolare il numero massimo di pi dopo la virgola. Il record è ora noto per essere 73 miliardi cifre dopo la virgola.

 

Storia

Il numero di PI era conosciuto dalla Babilonia, dagli antichi egizi e da molte antiche civiltà. Si resero conto che il perimetro di tutti i cerchi era uguale a un numero fisso delle sue parti. La presenza di questo numero fisso permette ora il calcolo del perimetro di ogni cerchio conosciuto. Intorno al 2000 a.c., i Babilonesi stavano usando il numero p 31/8 o 3,125. Nella Grecia antica, la radice quadrata è stata utilizzata in 10 o 3,162 numeri. Archimede (B.C. 287 – 212) usò il numero di 3 10/71 e 3 1/7 come numero P.

 

Nel 500 d.c., usò 3,1415929 per il numero P. Nel 1424, le sedici cifre dopo la virgola erano correttamente conosciute in Iran. Nel 1596, il Tedesco Ludolph van Ceulen calcolava le venti cifre dopo la virgola di P, e questo numero era conosciuto come la costante Ludolph in Europa. Dopo tale data, il numero di P è stato calcolato da miliardi di cifre dopo la virgola.

Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 English Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Deutsche Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 български Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 hrvatski Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 čeština Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 dansk Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Nederlands Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 français Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Ελληνικά Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 हिंदी Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Indonesia Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 italiano Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 norsk Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Polskie Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Português Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 românesc Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 русский Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 slovenský Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 español Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Український Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Melayu Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 svenska Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 ไทย Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Magyar Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 việt Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 99 Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Notice: Trying to get property of non-object in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 102 Suomalainen Notice: Undefined variable: currentLanguage in /home/infountain/domains/infountain.net/public_html/site/templates/post.php on line 106