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Aug
17
revised How to get count of digits of a number
edited tags
Aug
17
reviewed No Action Needed fundamental groups of complement of lines in $\mathbb{C}^2$
Aug
17
reviewed Leave Open Proving $\sum_{k=0}^{n}k{n\choose k}^2 = n{2n-1 \choose n-1} $
Aug
17
reviewed Leave Open Finesse vs. brute force in solving quadratic equations
Aug
16
reviewed Reopen Derivative of function is bigger??!
Aug
16
reviewed Close no of intersection points.!
Aug
15
reviewed Leave Open Serre's Topics in Galois Theory
Aug
15
reviewed No Action Needed Calculate the determinant of the matrix ad hence prove
Aug
15
reviewed Looks OK Prove that $\det(A)\neq 0$.
Aug
15
reviewed No Action Needed Fourier Series of $f$ on the given interval
Aug
14
revised proofs for combinatorial identities?
Correct index of summation
Aug
14
reviewed No Action Needed Need help in this proposition
Aug
12
reviewed Looks OK Computing orthogonal projection onto range space of a given matrix
Aug
12
comment Algebraic Issue
As currently written, $X_1$, $X_2$, $Y_1$, and $Y_2$ are irrelevant and there are an infinite number of solutions. Are you sure you haven't missed something out of the question?
Aug
12
reviewed Leave Open Lower bound for quotient sets
Aug
10
comment ratio of alcohol to water
Note that there's probably an unspoken assumption that if you remove 5 litres of alcohol and add 5 litres of water you end up with the starting volume of 15 litres. This isn't quite true, so beware limitations of the model.
Aug
10
comment Is there an algorithm for determining when two graphs are isomorphic?
Technically you should include a test that the two graphs have the same number of vertices, as adding a disconnected vertex wouldn't change the integer you've defined.
Aug
9
reviewed Reviewed Streaming algorithm for polynomial fitting data?
Aug
9
revised Streaming algorithm for polynomial fitting data?
Inline the key part in case the link dies
Aug
9
reviewed Close What i am doing wrong here . and if i am correct then can any one explain to me how $1=-1$