Search 2 x 109 decimal digits of Pi, E,
the Square Root of Two and 5 x 108 digits of Phi (the Golden Ratio) for the first
occurrence of a numeric string, or display a specified number of digits from a given starting position.
Message:
Please enter a numeric string to search or a starting position (decimal digits only)?
Why create an irrational numbers search engine? Why not! Built in 2002 just for fun, the original
implementation only offered digits for Pi and ran on a makeshift server in my basement.
The hardware has since been continually upgraded and the application tuned for performance.
Digits for Euler's Number, Phi and the Square Root of 2 were added in 2011 by popular request.
Usage has steadily increased over time, with 948,457
searches processed in the 5 years between 2010 and 2014. Usage spiked dramatically
in 2013 with 301,050 searches, and tapered off slightly in 2014 with a total of 261,826.
As of June 2018, the search engine is processing an average of 47K queries per month!
Search Totals
Searches by Type
Between 2010 and 2014, 14,440 unique visitors from 116 countries accessed the search engine,
including numerous corporations, universities and schools across the
globe. I have received a range of user feedback, citing uses spanning research (from the mainstream
to the fringes of credibility) to Geocachers who have used the site to embed clues within the digits
of Pi. It has been interesting and rewarding to see the variety of 'uses' for the search engine!
Top Countries
Searches by Continent
Searches during this period averaged 6.6 digits, with an average search time of 1.91 seconds.
CPU time totaled 1,694,826 seconds, or over 470 hours!
How it works:
The search engine was originally implemented as a VB6 executable invoked within a shell command by an ASP
page, using text files for input and output. That approach was a bit of a kludge, so I
rewrote it as a VB6 class (.dll) callable from within an ASP page. You can download the VB6
source code, executables and sample VBScript code
here.
The source code package has been downloaded 5,639 times as of 7/15/2018.
Updated 10/02/2020: The
application runs on a Windows Server virtual machine hosted on a 2018 Mac Mini
configured with an i7 8700K Coffee Lake CPU with 6 cores, 64GB of RAM and a
fast NVMe SSD. The VM is allocated 8GB of RAM supporting disk
I/O caching, which combined with fast SSD access delivers maximum throughput and concurrency.The
search engine currently supports 6 concurrent searches, which is a function of
the number of CPU cores available to the virtual machine.With this enhanced
hardware configuration, full scans of a 2GB file completes in under 8 seconds on
average under maximum concurrency (twice as fast as the prior 2011 Mac Mini
Server setup).
Send us a note about how you're using the search engine using the contact us
link below - comments, suggestions or ideas are welcome!
Links:
Pi,
e, the
Square Root of 2 and the
Golden Ratio (Phi) on Wikipedia
Again, Hobbes differs wholly from Bacon in the deductive character of his method. His logic is the old syllogistic system reorganised on the model of mathematical analysis. Like all the great thinkers of his time, he was a geometrician and a mechanical physicist, reasoning from general to particular propositions and descending from causes to effects.554397 His famous theory of a social contract is a rational construction, not a historical narrative. But though a mathematician, he shows no traces of Platonic influence. He is, therefore, all the more governed by Atomist and Stoic modes of thought. He treats human nature, single and associated, as Galileo and Descartes had treated motion and space. Like them, too, he finds himself in constant antagonism to Aristotle. The description of man as a social animal is disdainfully rejected, and the political union resolved into an equilibrium of many opposing wills maintained by violent pressure from without. In ethics, no less than in physics, we find attractive forces replaced by mechanical impacts. As a universal philosophy, the theory of Development,428 like every other modern idea, has only been permitted to manifest itself in combination with different forms of the old scholasticism. The whole speculative movement of our century is made up of such hybrid systems; and three, in particular, still divide the suffrages of many thinking men who have not been able entirely to shake off the influence of reactionary ideas. These are the systems of Hegel, of Comte, and of Mr. Herbert Spencer. In each, the logic and metaphysics inherited from Greek thought are variously compounded with the new science. And each, for that very reason, serves to facilitate the transition from one to the other; a part analogous to that played among the Greeks themselves by the vast constructions of Plato and Aristotle, or, in an age of less productivity, by the Stoic and Alexandrian philosophies. “Then he must be French, maybe,” Dick said. “Jeff was a good teacher, I see. Go ahead.” [Pg 278] "Jehosephat, how good that tastes," said Shorty, speaking still faintly, but far more freely than at first, after he had drained the canteen. "Sonny, run and git some more; and mind you fill the canteen full this time. I feel as if I could drink up the Mississippi River. Say, boys, what's happened? Appearintly, I got a sock-dologer on my head from some feller who thought I was too fresh. I'm afraid I'll have a spell o' headache. But we got the flag, didn't we?" "All right, boys, I'll lay low. I've come down here to help you," answered the Deacon. Nothing more was needed for the crowd that had followed up the squad, anticipating a raid. Bottles, demijohns and kegs were smashed, the cigars and tobacco snatched up, and the place thoroughly wrecked in a few minutes. There was a general giggle, and a chorus of exclamations at such unpatriotic and unwomanly perfidy. Shorty's appetite fled. The cheering ceased, the bonfires burned out. Shorty put his letter in an envelope, directed it, and added it to the heap at the Chaplain's tent. "There ain't one of 'em within cannon-shot, and won't be till we go out and hunt 'em up again. You've come near spilin' the spring with your tormented foolishness. What on earth possessed you to climb that boss? You need half killin', you do. Go up higher there and fill your canteens from where the water's clear. Be slow and careful, and don't rile the water. Say, I see some nice sassafras over there. I always drink sassafras tea this time o' year. It cleans the blood. I'm goin' over and see if I can't git a good root while you're fillin' your canteens." "Can you see any path through this abatis, Sergeant?" nervously asked Harry Joslyn. Once more she had taken up her unwilling part in Boarzell's epic. She was expecting another child for the following spring. This would be her seventh. "My dear, if anyone else would buy the Moor, I'd be only too pleased to sell it to them. But so far there hasn't been a nibble. Backfield's the only man who has the temerity to think he could make anything out of a desert like Boarzell, and I must say I admire his pluck." Then suddenly she was silent—and Reuben kissed her. Caro looked gloomily at the water. She did not like being told she would be shocked, though she knew she would be. "They say he's a hard man." HoME中国一级不卡无码免费三区
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