12,943 reputation
11657
bio website go.helms-net.de
location Kassel, Germany
age 61
visits member for 4 years, 1 month
seen 1 min ago

Mathematics is only a hobby - although I have done undergrad courses in the 70s. But part of my job was doing statistics and this kept me near my favourite subject "linear algebra" (programmed factor-analysis and a matrix-orientated calculator MatMate). Around 2002 I came in contact with the internet community in math newsgroups and could improve my Collatz discussion. Next subject was the Bernoulli numbers, then integer matrices and since 2006 the problem of iterated exponentiation aka tetration. Serving half-time jobs in teaching here at the university I found time to fiddle with that subjects in depth - and found love with the exploratory approach and impulse of the 18'th century numbertheory, namely L. Euler, "the master of us all"... Due to lack of formal education I've to do my "research" widely on my own - but that's what I just like: to find structure, pattern, laws from the ground.


Oct
25
revised Explain $x^{x^{x^{{\cdots}}}} = \,\,3$
deleted 16 characters in body
Oct
19
revised Do these series converge to logarithms?
added 215 characters in body
Oct
19
revised Do these series converge to logarithms?
added 481 characters in body
Oct
19
revised How to solve $y''' = y$
improved formatting
Oct
11
revised Number of possible cycles in collatz conjecture
added 88 characters in body
Sep
30
revised Evaluation of a class of continued fractions
edited body
Sep
30
revised Evaluation of a class of continued fractions
added 61 characters in body
Sep
30
revised Evaluation of a class of continued fractions
added 269 characters in body
Sep
30
revised Evaluation of a class of continued fractions
added 328 characters in body
Sep
28
revised how to get $ f(x) $ if we know $ f(f(x))=x^2+x $
added 1515 characters in body
Sep
28
revised how to get $ f(x) $ if we know $ f(f(x))=x^2+x $
added 63 characters in body
Sep
26
revised alternating sum of zeta functions minus one is one half
added 155 characters in body
Sep
20
revised Surprising identities / equations
type name of Leibniz
Sep
18
revised Does a generalization of the Teichmuller-character for non-prime arguments exist?
added 226 characters in body
Sep
18
revised Does a generalization of the Teichmuller-character for non-prime arguments exist?
added 149 characters in body
Sep
10
revised Using Pascal's Triangle for Binomial Expansion.
added 803 characters in body
Sep
10
revised What is $\cdots ((((1/2)/(3/4))/((5/6)/(7/8)))/(((9/10)/(11/12))/((13/14)/(15/16))))/\cdots$?
added 95 characters in body
Sep
10
revised What is $\cdots ((((1/2)/(3/4))/((5/6)/(7/8)))/(((9/10)/(11/12))/((13/14)/(15/16))))/\cdots$?
added 453 characters in body
Sep
10
revised What is $\cdots ((((1/2)/(3/4))/((5/6)/(7/8)))/(((9/10)/(11/12))/((13/14)/(15/16))))/\cdots$?
added 231 characters in body
Sep
10
revised Using Pascal's Triangle for Binomial Expansion.
added 36 characters in body