El'endia Starman
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# 441 Actions

 May 31 reviewed Approve SAT math problem about probability May 31 reviewed Approve Roots of the equation $x^2 + px + q = 0$ May 31 reviewed Approve Is there a set $A$ such that power set of $A$ has a bijection with $\mathbb{N}$? May 31 reviewed Approve How to write a line as the sum of a vector and a subspace? May 28 accepted When (and why) did the convention that exponents are evaluated from right to left arise? May 21 reviewed Approve problem about symmetric positive semi-definite matrix May 5 awarded Yearling Apr 27 reviewed Approve Curious about a made-up paradox Apr 26 comment What is this pattern called? I love that you posted this! I stumbled across this same pattern years ago but didn't think to ask about it online. (Then again, that might have been before I knew about Math.SE.) So, thanks for doing this! :) Apr 16 asked When (and why) did the convention that exponents are evaluated from right to left arise? Apr 10 reviewed Approve Solve for X in a difficult exponential function Mar 22 reviewed Approve Strategy for 2-player game, drawing uniform variables and optionally redrawing Mar 16 comment Group Permutations Proof @CoolNewFriends: You can't use the statement you're trying to prove as part of its own proof. Mar 10 reviewed Approve Calculating the mass of a surface? Jan 16 reviewed Approve Limits of floor functions Jan 8 reviewed Approve Solutions of $a^x = x$ Jan 8 comment How can I prove whether a $9\times 9$ square can be filled with L-shaped pieces in a completely “regular” way? @coffeemath: Mmm...it's an L-shape that's three times as large. I count 9 L-pieces, thus 27 squares, which can and does form an L-shape where each "square" is composed of 9 smaller squares. Jan 8 comment How can I prove whether a $9\times 9$ square can be filled with L-shaped pieces in a completely “regular” way? +1 for a simpler way to state my thought process and thus simplify the (false) proof. Jan 8 comment How can I prove whether a $9\times 9$ square can be filled with L-shaped pieces in a completely “regular” way? Aaand there's the counterexample! Right under my nose! Jan 8 accepted How can I prove whether a $9\times 9$ square can be filled with L-shaped pieces in a completely “regular” way?