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Mar
23
comment Notation in formula for tensor product of Hadamard matrix
To put this explicitly, I think we should think of $x$ and $y$ as bit strings of length $n$, and then define $$x \cdot y=\bigvee_{j=1}^n(x_j\land y_j).$$
Mar
22
awarded  Excavator
Mar
22
awarded  Tag Editor
Mar
22
revised quantum-computation wiki excerpt
added 406 characters in body
Mar
22
revised quantum-computation wiki description
added 572 characters in body
Mar
22
revised Notation in formula for tensor product of Hadamard matrix
Spelling, grammar, listing minus sign terms in "fourth quadrant" of the matrix.
Mar
22
wiki created quantum-computation description
Mar
22
wiki created quantum-computation excerpt
Mar
22
suggested approved edit on quantum-computation tag wiki
Mar
22
suggested approved edit on quantum-computation tag wiki excerpt
Mar
22
awarded  Informed
Mar
22
suggested approved edit on Notation in formula for tensor product of Hadamard matrix
Jun
23
answered Online tool for making graphs (vertices and edges)?
Oct
17
revised What is a closed chain (or circuit) that is used in solving a transportation problem (a special type of linear programming problem)?
Link to MHB version.
Oct
17
suggested approved edit on What is a closed chain (or circuit) that is used in solving a transportation problem (a special type of linear programming problem)?
Sep
30
awarded  Explainer
May
11
answered How to solve $\displaystyle \lim_{x \to 0} \sqrt{x^2 + x^3} \sin \frac{\pi}{x}$ using squeeze Theorem?
May
7
awarded  Yearling
Apr
3
comment Inverse image of a Borel set is a Borel set under measurable function
Wonderful! Many thanks.
Apr
2
comment Inverse image of a Borel set is a Borel set under measurable function
Also, it is legal to form the expression $f^{-1}([-\infty,2))$, when the range of $f$ is $E$?