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Leonard Blackburn's user avatar
Leonard Blackburn's user avatar
Leonard Blackburn's user avatar
Leonard Blackburn
  • Member for 10 years, 10 months
  • Last seen more than a month ago
  • Champaign, IL, United States
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About

I'm a community college math instructor. I teach algebra, trigonometry, and calculus. I'm trying to re-learn more math beyond the courses I teach. Right now, I'm reading a thorough and rigorous text on Matrix Theory (Linear Algebra).

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Top posts
question
15
Where Does Lichess Get Its Names for the Openings?
Feb 28, 2022
question
4
How Should This Rook and Pawn Endgame Be Understood?
Apr 16
answer
2
What are key squares and critical squares?
Nov 15, 2013
answer
1
Simple (not deep in theory or moves) Openings for White and Black?
Feb 28, 2022
answer
1
Resources for an e4 repertoire
Feb 7