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 Apr16 accepted What are the names of these variations on the transpose of a matrix and symmetric matrices? Apr16 asked What are the names of these variations on the transpose of a matrix and symmetric matrices? Feb24 awarded Nice Answer Sep30 awarded Explainer Sep10 awarded Yearling Aug18 revised Ellipse definition Markup up equations Aug18 suggested approved edit on Ellipse definition Aug12 comment Proof by induction: $n$th Fibonacci number is at most $2^n$ Not really, but we need some sort of advancement with the indices. We could have written $F_{n+1} = F_{n} + F_{n-1}$ instead, but the idea is the same. Notice in this answer that we prove the hypothesis for $F_3$, then $F_4$, etc. Aug12 answered Proof by induction: $n$th Fibonacci number is at most $2^n$ Aug9 answered How should I continue on with this proof by contraposition? Aug8 revised How many distinct ways to climb stairs in 1 or 2 steps at a time? added 3 characters in body Aug6 answered Constrained Shortest Path Dijkstra Aug4 revised Find a power series for function Updated answer Aug4 revised How many distinct ways to climb stairs in 1 or 2 steps at a time? Fixed markup Aug1 answered Discrete Mathematics books for Computer Science Self-study Jul28 answered Have any one studied this binomial like coefficients before? Jul26 answered Why is a raised to the power of Zero is 1? Jul25 revised how to find taxicab numbers but for squares? TeXed question Jul25 suggested approved edit on how to find taxicab numbers but for squares? Jul25 answered Prove that if G is a tree in which all vertices have odd degree then G has odd size.