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Stephan Kulla

I take part in the free textbook project “Mathe für Nicht-Freaks” (German textbook for beginners of mathematics). We are looking for co-authors! When you want to participate in this project, feel free to contact us. You will help a lot of students!

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  • Member for 8 years, 7 months
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  • Last seen Jun 26 '20 at 9:31

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25 Supremum of all y-coordinates of the Mandelbrot set Sep 18 '14
24 Find the eigenvalues of a projection operator Feb 20 '15
24 What are some things we can prove they must exist, but have no idea what they are? Sep 26 '15
22 Is there an epsilon-delta definition of the second derivative? Jun 17 '12
15 Can a function be differentiable at the end points of its (closed interval) domain? May 23 '15
13 Arithmetic rules for big O notation, little o notation and so on… Nov 8 '15
13 Is there an example for an undefinable number? Nov 8 '15
10 Why it is absolutely mistaken to cancel out differentials? May 8 '15
9 Solving the geometric series for q Aug 25 '16
9 Estimates for the normal approximation of the binomial distribution May 19 '15
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