Kirthi Raman
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 May 13 comment Triangle-ish Number Series $T$ is not the same in those two expressions, and if they are then $q=x-(n+1)y$ May 13 comment Multiplication convention rules The fact that students have to face such a teacher year after year, I would give a warning (if I come across such grading) and the second such mistake would cause termination. May 13 comment How to multiply two polynomials represented by values at distinct points? Computationally if you store them as a vector, that is equivalent to what J.D. has answered. (If one has written a program in any language one would know) May 12 comment Help with question involving limits, bounds, inequalities $(4+5)^n > (4^n+5^n)$ and try similarly from the other end to show $(a)$ part. May 12 answered How to multiply two polynomials represented by values at distinct points? May 12 comment How to multiply two polynomials represented by values at distinct points? You treat them like vector implementation (not matrices). You would have for polynomials of degree $n$, $n$ multiplications and $n-1$ addition for product. May 12 comment Sum from 0 to n of $n \choose i$? MSE ought to incorporate some AI techniques to catch duplicate questions automatically. May 12 comment Sum from 0 to n of $n \choose i$? Always google search and wiki search. Induction proof at proofwiki.org/wiki/Sum_of_Binomial_Coefficients_for_Given_n May 12 revised Sum from 0 to n of $n \choose i$? edited body May 11 comment Contemporary mathematician one should know about Manjul Bhargava(Harvard),Kiran Kedlaya(MIT),Soundararajan(Stanford), Ravi Vakil(Stanford) May 10 comment What is the $\sum\limits_{i=0}^{\ (\log_2(n))-1)}\frac{n}{2^i}$? I did not see that (Oops!..You have already mentioned that) May 10 comment What is the $\sum\limits_{i=0}^{\ (\log_2(n))-1)}\frac{n}{2^i}$? Technically $log_2 (n)$ may not give integer value. Therefore it makes sense to use the floor function, i.e. instead of $m-1$, use $\left \lfloor log_2 n - 1\right \rfloor$ May 10 comment Factoring a number to get an encoded string Decoding algorithms in general has to work both ways (left to right or right to left). Instead of re-inventing a new algorithm one could also use Base-32. (stackoverflow.com/questions/641361/base32-decoding) May 8 comment solving ODE using variation of parameters First find the solution to the corresponding homogeneous equation $y\prime\prime+y\prime-2y=0$ by using characteristic equation $r^2+r-2=0$ May 8 revised Simplifying Logarithmic Expression deleted 94 characters in body May 8 comment Popular science book on rigorous axiomatic approach Try snipurl.com/23f8po6 (Another interesting book to have) May 8 answered Simplifying Logarithmic Expression May 8 answered Factoring a number to get an encoded string May 8 comment How to find $\int{\left(\frac{\sqrt{x+1}}{x-1}\right)^x}dx$? For $\int x^x dx$ check math.stackexchange.com/questions/141347/how-to-solve-int-xxdx (But this one here looks complicated) May 7 answered Integrate $\int{2^{2x}} dx$