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Science Fiction & Fantasy
Rene Schipperus's user avatar
Rene Schipperus's user avatar
Rene Schipperus's user avatar
Rene Schipperus
  • Member for 10 years, 1 month
  • Last seen more than 9 years ago
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129
How does Cramer's rule work?
47
Absolute value inequality for complex numbers
34
Finding the roots of $(x^2+7x+6)^2 + 7(x^2+7x+6) + 6=x$
27
Why is Axiom of Choice required for the proof of countable union of countable sets is countable?
27
Has any error ever been found in Euclid's elements?