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Text of the page (random words):
david h bailey david h bailey computo ergo sum https www davidhbailey com math scholar blog math investor blog books software papers talks pi site press reports resume updated 1 january 2026 affiliation senior scientist retired computational research department lawrence berkeley national laboratory research overview high performance computing bailey is a leading figure in the field of high performance scientific computing with one book and over 100 published paper in this area his paper the nas parallel benchmarks co authored with several colleagues at nasa ames research center is widely cited in performance studies of scientific computer systems his paper ffts in external or hierarchical memory presented a technique for performing the fast fourier transform fft on parallel and hierarchical memory computers that is now the basis of many fft implementations on modern computer systems he has received the sidney fernbach award from the ieee computer society 1993 the gordon bell prize from the association for computing machinery 2008 and the test of time award from the acm ieee supercomputing conference 2015 computational and experimental mathematics bailey is also a leading figure in the field of computational and experimental mathematics he has written eight books and over 100 papers in this area together with several high precision computation packages many of his books and papers were co authored with jonathan m borwein of the university of newcastle australia deceased 2016 bailey s best known paper in this area on the rapid computation of various polylogarithmic constants co authored with peter borwein and simon plouffe describes a new formula for pi that permits one to directly calculate binary digits of pi beginning at an arbitrary starting position in two other papers bailey and richard crandall deceased 2012 demonstrated a connection between these formulas and a fundamental question about digit randomness bailey has received the chauvenet prize and the merten hesse prize from the mathematical association of america 1993 and the levi l conant prize from the american mathematical society 2017 financial mathematics bailey together with marcos lopez de prado and other colleagues have written a series of papers on mathematical finance among them pseudo mathematics and financial charlatanism the effects of backtest overfitting on out of sample performance and how backtest overfitting in finance leads to false discoveries other professional activities in addition to the technical papers mentioned above bailey has authored or co authored over 300 articles in venues such as the huffington post the conversation and various blogs he operates and is the principal author of the math scholar blog devoted to mathematics computing and modern science and the mathematical investor blog devoted to financial mathematics and abuses of mathematics in the field see books for a list of published books and papers for a full list of over 600 publications blogs operated authored or edited by bailey math scholar blog devoted to mathematics computing and modern science https www mathscholar org mathematical investor blog devoted to financial mathematics and abuses of mathematics in the field https www mathinvestor org jonathan borwein memorial site jonathan borwein a well known mathematician and long time collaborator with bailey passed away in august 2016 this site preserves memories of jon by over 50 family members students and colleagues together with an archive of nearly 2000 articles books and talks by borwein together with some reviews and commentaries on his work https www jonborwein org math drudge blog predecessor to the math scholar blog co authored by bailey and the late jonathan borwein math drudge blog smr blog devoted to modern science philosophy and religion https sciencemeetsreligion org other information books bailey has written one book on high performance computing seven books on computational and experimental mathematics and a cd rom reference all of these books are available at amazon com or directly from the respective publishers additional information on these books is available here https www davidhbailey com dhbbooks experimental mathematics website this website was jointly operated with jonathan m borwein https www experimentalmath info high precision software library bailey is a co author of several software libraries for high precision computation these libraries include translation facilities so that one can use with minor modifications ordinary fortran or c programs to perform high precision calculations https www davidhbailey com dhbsoftware online papers online copies for many of bailey s papers are available here https www davidhbailey com dhbpapers online talks online copies of many of bailey s recent lectures are available here https www davidhbailey com dhbtalks photos photo of bailey with pi banner as shown at the top of this page dhb pi banner high resolution version of full pi banner 20 mbyte dhb pi banner 20 mbyte photo of bailey with an lbnl shuttle bus displaying pi poster shuttle bus photo of an auto previously owned by bailey together with several researchers involved in calculations of pi yasumasa kanada eugene salamin and william gosper auto photo personal photo of bailey black white vertical format 1 mbyte bailey photo 1 mbyte personal photo of bailey color 2 5 mbyte bailey photo 2 5 mbyte personal photo of bailey color 2 5 mbyte bailey photo 2 5 mbyte bailey near summit of half dome bailey at half dome pi in 1996 peter borwein brother of jonathan borwein simon plouffe and bailey co authored a paper that presents a new formula for pi this formula now known as the bbp formula for pi permits one to compute binary or hexadecimal digit of pi beginning at an arbitrary starting position n without needing to compute any of the first n 1 digits by means of a simple scheme that requires very little memory it was originally discovered by simon plouffe using a computer program more recently richard crandall and bailey have shown that there is a connection between the new pi formula and the centuries old question of normality ie statistical randomness of digits in a certain sense of pi and various other math constants some additional information on pi bailey s pi website https www davidhbailey com pi science news article 24 apr 2004 pdf 5 mbyte scientific american article may 2003 pdf fax to bailey from the simpsons tv show pdf note the 40 000th digit of pi was provided to the show by bailey and this was aired in the show on 6 may 1993 see marge in chains press reports here are some press reports mentioning bailey https www davidhbailey com press reports resume bailey s detailed curriculum vitae resume including a list of publications is available here https www davidhbailey com dhb resume pdf disclaimer and copyright this site is owned and operated by david h bailey material on this site is provided for research purposes only and does not necessarily reflect the views or policies of the lawrence berkeley national lab or any other organization except where explicitly stated otherwise all material on this site is copyrighted by david h bailey c 2026