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location Moscow, Russia
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visits member for 1 year, 7 months
seen Jul 7 at 21:30

Programmer. Java/C#/C++/C/PHP/JavaScript/SQL/HTML/Mathematica/MATLAB


Aug
27
awarded  Popular Question
Jun
19
accepted Smooth transition between two quaternions?
Jun
19
revised Smooth transition between two quaternions?
added 134 characters in body
Jun
19
comment Smooth transition between two quaternions?
Sorry, this is what I am doing, but it behaves strange.
Jun
19
revised Smooth transition between two quaternions?
edited body
Jun
19
asked Smooth transition between two quaternions?
Aug
14
comment Concept of set without concept of member?
Having smallest and/or largest element is not mandatory for a group, right? Hence, existing for such elements is additional feature.
Aug
13
comment Concept of set without concept of member?
If consider a lattice, then join stands for intersection and meet stands for union, right? Then what stands for empty set? How to guarantee that $A \cup \emptyset = A$ and $A \cap \emptyset = \emptyset$? Is this come from lattice definition? And how to model instersection and union of 3 and more sets?
Aug
12
asked Concept of set without concept of member?
Aug
9
accepted Is the function, calculating square root of natural number — computable?
Aug
8
comment Is the function, calculating square root of natural number — computable?
@RahulNarain my question is about terms; If I have real function and CAN NOT (in principle) find representation in $\mathbb{N}\rightarrow\mathbb{N}$ form, then what does it means? That function is "not computable"? Or term "computable" is not applicable for real functions at all? If not, then is there any equivalent concept for real functions?
Aug
8
revised Is the function, calculating square root of natural number — computable?
edited body
Aug
8
comment Is the function, calculating square root of natural number — computable?
@AndresCaicedo so is there a concept of "computable real functions" which is consistent with concept of "computable (real) numbers"?
Aug
8
revised Is the function, calculating square root of natural number — computable?
deleted 394 characters in body; edited title
Aug
8
awarded  Citizen Patrol
Aug
8
revised Is the function, calculating square root of natural number — computable?
deleted 394 characters in body; edited title
Aug
8
comment Is the function, calculating square root of natural number — computable?
If so, then why it is said in your citation, that not computable functions examples are "any function that outputs the digits of a noncomputable number, such as Chaitin's constant"? Why such complex examples if such simple function, as the one computing digits of $\sqrt{2}$ is also not computable?
Aug
8
revised Is the function, calculating square root of natural number — computable?
edited title
Aug
8
comment Is the function, calculating square root of natural number — computable?
I guess my definiton was equivalent to yours. I said "to any given precision" and you said "to any given $n$ where $n$ is a number of first digits". If this is different then pls explain.
Aug
8
awarded  Commentator