# Mårten W

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bio website location Lund, Sweden age member for 1 year, 6 months seen 7 hours ago profile views 239

I'm a wetiwed window cleaner, and pacifist. Without doing waw cwimes.

 9 Evaluation by methods of complex analysis $\int_{0}^{1} \frac{\ln(x+1)}{x^2+1} \mathrm{dx}$ 6 How to calculate $\int \frac{x^3+x^2}{x^3-1} \mathrm{d}x$ 6 Under what conditions is the identity |a-c| = |a-b| + |b-c| true? 6 Integration of $\frac{\tan(x)}{\cos(x)}$ 6 Solving the improper integral $\int_0^{\infty}\frac{dx}{1+x^3}$

# 1,646 Reputation

 +10 Evaluation by methods of complex analysis $\int_{0}^{1} \frac{\ln(x+1)}{x^2+1} \mathrm{dx}$ +15 Non-trivial values of error function $\operatorname{erf}(x)$? +10 Evaluating real integral using residue calculus: why different results? +2 How to maximize $\left({a+b \choose a} 2^{-a-b}\right)$?

# 4 Questions

 13 Non-trivial values of error function $\operatorname{erf}(x)$? 4 What are sufficient conditions for a matrix to have the same eigenvectors as its exponential? 4 Combinatorial interpretation of this number? 4 Interpretation of eigenvectors of cross product

# 65 Tags

 35 calculus × 8 11 improper-integrals × 2 27 integration × 8 11 residue-calculus × 2 18 homework × 7 7 combinatorics × 4 17 linear-algebra × 9 7 convergence × 3 12 complex-analysis × 3 7 indefinite-integrals × 2

# 5 Accounts

 Mathematics 1,646 rep 2521 Stack Overflow 156 rep 14 TeX - LaTeX 101 rep 1 English Language & Usage 101 rep 2 Robotics 101 rep 1