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Pat Ballew
moderator

Today in History  - 
Mathematics is the most exact science, and its conclusions are capable of absolute proof. But this is so only because mathematics does not attempt to draw absolute conclusions. All mathematical truths are relative, conditiona...
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David Kotschessa
owner

Discussion  - 
 
Note: Some posts not related to Math History were removed. 
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Pat Ballew's profile photoDavid Kotschessa's profile photo
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+Pat Ballew That sounds like a fantastic place to be.
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Helen Cruz

Discussion  - 
 
♥♠Who invented the roulette?♠♥
https://casinoslots.net/?utm_source=google&utm_medium=gp&utm_campaign=lead
Records show that #roulette was invented and developed by French mathematician, Blaise Pascal. It was not, of course, for #gambling purposes, but rather with the intention to assemble a 🚌machine that would stay in perpetual motion.
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welcome )
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Angel Luiz Sanchez Portal

The Viewing Lounge  - 
 
                                             El número Pi

                    Una pequeña historia de su valor


- Renacimiento europeo
John Wallis (1616–1703).
Leonhard Euler (1707–1783).
A partir del siglo XII, con el uso de cifras arábigas en los cálculos, se facilitó mucho la posibilidad de obtener mejores cálculos para π. El matemático Fibonacci (1170-1250), en su Practica Geometriae, amplifica el método de Arquímedes, proporcionando un intervalo más estrecho. Algunos matemáticos del siglo XVII, como Viète, usaron polígonos de hasta 393 216 lados para aproximarse con buena precisión a 3,141592653. En 1593 el flamenco Adriaan van Roomen (Adrianus Romanus) obtiene una precisión de 16 dígitos decimales usando el método de Arquímedes.

- Matemática india
Usando un polígono regular inscrito de 384 lados, a finales del siglo V el matemático indio Aryabhata estimó el valor en 3,1416. A mediados del siglo VII, estimando incorrecta la aproximación de Aryabhata, Brahmagupta calcula π como √10, cálculo mucho menos preciso que el de su predecesor. Hacia 1400 Madhava obtiene una aproximación exacta hasta 11 dígitos (3,14159265359), siendo el primero en emplear series para realizar la estimación.

- Época moderna (precomputacional)
En 1610 el matemático Ludolph van Ceulen calculó los 35 primeros decimales de π. Se dice que estaba tan orgulloso de esta hazaña que lo mandó grabar en su lápida. Los libros de matemática alemanes durante muchos años denominaron a π como número ludolfiano. En 1665 Isaac Newton desarrolla la serie.El matemático inglés John Wallis desarrolló en 1655 la conocida serie Producto de Wallis:

Un ejemplo de su cálculo.
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About this community

This community is for anyone interested in the history of mathematics from ancient to modern times. Anybody interested in math history at *any* level is welcome. NOTE: While there are a lot of interesting math memes, jokes, etc. floating around the Internet, we limit our discussion to topics of historical interest. Other posts will be removed.

harlin pasili ansori

Mathematicians  - 
 
 
REAL HISTORIES OF SCIENCE!!!!!!

For Every People!

REVEAL THE TRUTH /REAL HISTORIES
REDUCE (OR MAYBE DELETE) THE FRAUD AND FAKE  In The HISTORY OF SCIENCE

Thanks...
Harlin Pasili Ansori

#History #Histories #Science #Mathemathic #mathematic  

#Israel #Ismael #Darussalam #DarvsShalomvs #DarElAlim #DarvsAlimvs #ScienceHistory #TheStateOfSafetyment #TheStateOfScience #ScienceState  
#TheStateOfPeace #RealHistories  
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harlin pasili ansori's profile photoDaniel Arias's profile photo
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You have just repeated what it was said on the picture. However I do not see links to articles by credible professors or universities or even journals on the subjects described. All we have is YOUR WORD. and that is USELESS.
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milo gardner

Philosophy of Mathematics  - 
 
Updating a 25 year old paper on Arab numerals https://www.academia.edu/26935651/Arabic_numerals a topic that reported Arabs did not add zero as many have reported came from India. Arabs replaced Greek numerals ciphered to Ionian and Doric letters, kept the Greek zero, two dots over an oval/ Most report zero in a muddled way to distract readers from the actual Greek and Arab number theory that scaled rational numbers by LCM m. Greeks by multiplication and Arabs by subtraction.
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David Kotschessa
owner

Discussion  - 
 
Semi off-topic, but as supreme-overlord-dictator-in-chief or whatever I'm allowed. I've been creating this collection of (not necessarily mathematical) history podcasts which may be of interest. The collection is getting pretty significant.
https://plus.google.com/collection/sMdpQB
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Pat Ballew
moderator

Today in History  - 
There is no smallest among the small and no largest among the large, But always something still smaller and something still larger. Quoted in E Maor, To Infinity and Beyond: a Cultural History of the Infinite The 187th day o...
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Pat Ballew
moderator

Today in History  - 
Music is the pleasure the human mind experiences from counting without being aware that it is counting. ~Gottfried Leibniz The 185th day of the year; the decimal expansion of the first 185 digits of Euler's constant is prime...
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