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November 8th, 2018, 10:12 pm
Forum: Off Topic
Topic: are you ready for some football ?
Replies: 17
Views: 22993

Re: are you ready for some football ?

November 6th, 2018, 11:32 am
Forum: Off Topic
Topic: are you ready for some football ?
Replies: 17
Views: 22993
November 5th, 2018, 10:21 pm
Forum: Off Topic
Topic: are you ready for some football ?
Replies: 17
Views: 22993

Re: are you ready for some football ?

La Final de la Copa Libertadores sera
Boca vs. River  El fútbol latinoamericano en su máxima expresión
Dos fechas Noviembre 10 y 24.
October 25th, 2018, 10:40 pm
Forum: Brainteaser Forum
Topic: exp(5) = $e^5$
Replies: 527
Views: 95830

Compute $e^{\pi}$ to 2 decimal places with pencil and paper. ( Gelfond's constant ) A follow-on from Exsan's post and ansatz (big conjecture but in the right direction)  is whether $\pi$ and $e$ are algebraically independent? i.e. is there a polynomial relation $a_{n}\pi^{n} + a_{n-1}... September 20th, 2018, 8:24 pm Forum: Off Topic Topic: Animal storieS Replies: 187 Views: 24068 Re: Animal storieS Maybe his wife was a psychopath. Maybe she was quant September 16th, 2018, 7:43 pm Forum: Brainteaser Forum Topic: exp(5) =$e^5$Replies: 527 Views: 95830 Re: exp(5) =$e^5[\$]

π⁴ + π⁵ ≈ e⁶
to seven significant figures

Ref
Analysis Fact  @AnalysisFact
September 14th, 2018, 12:27 am
Forum: Student Forum
Topic: Proofs of convergence of numerical algorithms
Replies: 8
Views: 854

Re: Proofs of convergence of numerical algorithms

.. and for PDE/FDM use the famous Peter Lax theorem to prove stability and convergence.

https://people.maths.ox.ac.uk/trefethen/4all.pdf
well explained, great paper
September 11th, 2018, 1:48 pm
Forum: Book And Research Paper Forum
Topic: C++11 and C++14 Articles
Replies: 42
Views: 3406

Re: C++11 and C++14 Articles

I have just been informed by my publisher John Wiley today (my 66th birthday!) that my second edition will be published 31 August 2018.
congratulations as well
September 10th, 2018, 12:21 am
Forum: Off Topic
Topic: Your least favourite (a.k.a. most hated) city
Replies: 20
Views: 321

Re: Your least favourite (a.k.a. most hated) city

Żyrardów, Poland. I can't find a single nice thing to say about it.
Katowice
September 8th, 2018, 5:19 pm
Forum: Off Topic
Topic: "Unified Revolution" new book by Espen Haug
Replies: 498
Views: 20524

Re: "Unified Revolution" new book by Espen Haug

I know. Not any less interesting than my other comments. I'm like those old swats telling stories from their past, again and again
September 8th, 2018, 5:17 pm
Forum: Off Topic
Topic: Are You Ready for Some Tennis?
Replies: 153
Views: 19492

Re: Are You Ready for Some Tennis?

UNIQLO sponsored Nishikori, Ferrer among others.
Ferrer wore great shirt and shorts, it was neat, though Nishikori seemed to be wearing a not so good quality equipment?!    UNIQLO Federer  tenis clothes are not available yet.
September 7th, 2018, 7:19 pm
Forum: Off Topic
Topic: Are You Ready for Some Tennis?
Replies: 153
Views: 19492

Re: Are You Ready for Some Tennis?

More like in bad taste. It look ridiculous. https://media.glamour.com/photos/5b0d8937c5e2f62a895aeed7/master/w_1280,c_limit/GettyImages-963587684.jpg I think it looks sexy keep your eye on the ball "keep your eye on the ball" exactly that is the secret in tennis.  Watch carefully to Nadal, he alway...
September 7th, 2018, 7:15 pm
Forum: Off Topic
Topic: Are You Ready for Some Tennis?
Replies: 153
Views: 19492

Re: Are You Ready for Some Tennis?

Nadal es un animal, es una bestia, es una hiena. No he visto jugador con tanta potencia y destreza es un fenómeno. Sin duda alguna merece ganar el US Open. Simplemente es el mejor!  aunque me desagrada sus acomodos y sus arreglos y su ritual antes de cada punto, eso no le quita mérito. Nadal es un f...
September 7th, 2018, 12:54 pm
Forum: Off Topic
Topic: "Unified Revolution" new book by Espen Haug
Replies: 498
Views: 20524

Re: "Unified Revolution" new book by Espen Haug

On a different note (and back on topic!) - some recent news from physics: Researchers Solve First Problem From Mathematical Physics Wish List "The newly solved problem relates to the quantum Hall effect. The Hall effect "was discovered in a groundbreaking experiment by Edwin Hall in 1879 that showe...
September 7th, 2018, 9:57 am
Forum: Off Topic