User Rene Schipperus - MathOverflow Meta

Rene Schipperus

Member for 8 years, 4 months
Last seen more than 5 years ago

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Nov 14, 2019

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118

How does Cramer's rule work?

47

Absolute value inequality for complex numbers

34

Finding the roots of $(x^2+7x+6)^2 + 7(x^2+7x+6) + 6=x$

24

Has any error ever been found in Euclid's elements?

22

Proving ${\sum_{n=1}^\infty {1\over F_n}} <4$