James
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 Dec21 awarded Constituent Dec16 awarded Caucus Nov27 comment % of % - Please Help Me Prove My Friend Wrong @venidividicivicini youtube.com/watch?v=85cL1HisrNc Oct12 awarded Yearling Sep5 comment Can an observed event in fact be of zero probability? Almost never Jul31 answered Produce unique number given two integers Jul18 comment When does $Ax=b$ have any solutions? A non-zero determinant is required only for a unique solution. Feb4 comment integral from zero to zero Perhaps the Dirac delta function is an $f$ which gives a non-zero value Dec31 answered Am I Calculating Quartiles Correctly? Nov7 comment How to put 9 pigs into 4 pens so that there are an odd number of pigs in each pen? It's certainly not an odd number though! Aug16 comment If $AB=I_n$ and $BA=I_m$ then $n=m$. It is possibly simpler to say that the conditions in the question mean that $rank(A) = m$ and $rank(A) = n$. Since the rank of a matrix is unique that means $n = m$ Aug1 comment $2^a +1$ is not divisible by $2^b-1$. @AndréNicolas Thanks, I really appreciate it. Aug1 comment $2^a +1$ is not divisible by $2^b-1$. Can you explain the last line a little more please? Jun4 comment $\int^{1}_{0} f^{-1} = 1 - \int^1_0 f$ @Harold Do you mean obvious? May22 comment A Question about Doctoral Theses in Mathematics Good points. I'd also add that a thesis is also a measure of your expertise in the subject matter and research skills (which is essentialy what the doctorate signifies, not a groundbreaking result), and a short thesis may imply a lack thereof. Apr4 revised How can I Create an integral that can only be evaluated via complex contour integration? Made the question consistent with the quote Apr4 suggested approved edit on How can I Create an integral that can only be evaluated via complex contour integration? Oct5 awarded Commentator Oct5 comment How to prove that $G_3>0$ in this case? If cubing is enough to ensure you have a real number, then squaring this will give you a positive number Oct5 comment How to prove that $G_3>0$ in this case? $\omega^6 = $$\omega^3$$^2$