Christian Blatter
Reputation
398/400 score
 Apr 27 answered Having trouble deriving the symbols used in a quadratric approximation problem. Apr 27 revised A nice and hard colouring problem deleted 7 characters in body Apr 27 revised Similar triangle proof in parallelogram added 59 characters in body Apr 26 answered A nice and hard colouring problem Apr 26 answered Similar triangle proof in parallelogram Apr 26 answered Differential Equation $\frac{d^2y}{dx^2}=\left( \frac{dy}{dx} \right)^2 + 1$ Apr 26 comment $f$ has pole of order $m$ and $g$ has a pole of order $n$ at $z_{0}$, show $f+g$ has isolated singular point there Your thoughts are correct in all points. Apr 26 comment weird relation modulo @David天宇Wong: Thank you for notifying the slip. Apr 26 revised weird relation modulo deleted 4 characters in body Apr 26 comment euler's theorem of homogeneuos function The above is a proof. Apr 25 answered Complex Analysis: How isolated singular points behave Apr 25 revised How to calculate a definite integral with complex numbers involved? added 110 characters in body Apr 25 answered Solve $y'=e^{x^2}y$ (with $3$ terms only) in using power series Apr 25 answered How to calculate a definite integral with complex numbers involved? Apr 25 answered euler's theorem of homogeneuos function Apr 25 answered Show that $d(z,z_1)$ is a metric. Apr 24 revised In how many ways can the letters of word $PERMUTATIONS$ be arranged if there are always 4 letters between P and S? deleted 1 character in body Apr 24 answered In how many ways can the letters of word $PERMUTATIONS$ be arranged if there are always 4 letters between P and S? Apr 24 answered FUNCTIONS : Theoretical Doubt Apr 24 answered Prove that the function $f:\mathbb{R}^2\rightarrow\mathbb{R}$ is constant