Top network posts

• 20 How is possible that those shapes are equivalent in topology?
• 11 Why does a polynomial with real, simple roots change its sign between its roots?
• 8 Prove $1^r+2^r+.....\equiv 0\pmod p$ , given that p is odd prime and $0<r<p-1$
• 7 Boundary and initial conditions in quasi linear first order pde
• 7 how to drop the second curly bracket?
• 7 Why Mathematica solves that equation with the solution in complex numbers?
• 6 Why does my baby's feeding bottle get smashed in fewer pieces when fuller?
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