[math-fun] the Inverse Symbolic Calculator
...was replaced by the utterly useless http://psg.cecm.sfu.ca/projects/revenge/client/RevEngClient.html Just in case somebody on the list has contact to the people maintaining this site: please tell those folks to get a clue about how to create a usable website. The page uses Java with no fallback and therefore is unusable for many people. The only text is included as jpeg, well well. Perfect to exclude the blind folks (screenreaders don't read images), not even an alt-tag there, jeeeesus... all the best, jj -- p=2^q-1 prime <== q>2, cosh(2^(q-2)*log(2+sqrt(3)))%p=0 Life is hard and then you die.
hello, I agree the <reveng> engine is useless because of that java program which does not work for most people and platforms. (I did not programmed that junk!, I made the ISC only). The Inverse Symbolic Calculator still works there at the cecm, they did not unplugged my project there yet. http://www.cecm.sfu.ca/projects/ISC/ it uses the online (but limited) set of tests with 46 million constants. For lookups only I made the Inverter at http://pi.lacim.uqam.ca/eng/ and if you want a real test with 200 milllion constants + a real inverter which uses GFUN, Pari-GP with LLL you still can ask me to run a test on any number mail you number of any size to numbers@math.uqam.ca and I will run the tests on it. Of course : because of the exponential growth of CPU needed for solving anycase that has approx. 50 digits or more this last step is done interactively by me manually. I still could not find a way to automate that last step. Ah yes, the OEIS is embedded into the Inverter, I made a conversion of the integer sequences into real numbers using 18 different algorithms in 1999. I counted about 2 million entries that are made with the OEIS entries. Just in case that an unknown combination of integer sequence would lead to any interesting real number, and vice-versa. Simon Plouffe
participants (2)
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Joerg Arndt -
Simon Plouffe