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 Jul 2 awarded Curious Jan 29 awarded Good Question Dec 19 awarded Yearling May 26 awarded Nice Question Feb 23 awarded Nice Question Jan 27 answered Non-squarefree version of Pell's equation? Jan 26 comment Primitive integer solutions to $2x^2+xy+3y^2=z^3$? other than a number theory course at uni, Milne's Algebraic Number Theory notes has a few calculations like this, and it made an impression. Jan 25 awarded Self-Learner Jan 25 revised Primitive integer solutions to $2x^2+xy+3y^2=z^3$? solved second question Jan 25 answered Primitive integer solutions to $2x^2+xy+3y^2=z^3$? Jan 25 revised Primitive integer solutions to $2x^2+xy+3y^2=z^3$? deleted 1509 characters in body Jan 25 revised Primitive integer solutions to $2x^2+xy+3y^2=z^3$? solved first question Jan 25 revised Primitive integer solutions to $2x^2+xy+3y^2=z^3$? edited body; edited title Jan 25 asked Primitive integer solutions to $2x^2+xy+3y^2=z^3$? Jan 3 comment Homogeneous binary quartic forms to elliptic curves @Anirbit: That's orthogonal with respect to the standard quadratic form. There is an orthogonal group associated with any quadratic form: if the form is given by $x^tJy$, then the orthogonal matrices are those that satisfy $A^tJA=J$. Jan 3 answered Homogeneous binary quartic forms to elliptic curves Jan 2 comment Why are complex numbers necessary to prove the Prime Number Theorem? @deeeez: Actually, he asked "why", not "if". Jan 2 accepted Approximating the volume of the Jacobian of a hyperelliptic curve Jan 2 comment Designing an Irrational Numbers Wall Clock Is $2\pi+e$ known to be irrational? Dec 31 awarded Teacher