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Math & Geometry

Matrix choreography, digit arithmetic, and geometric counting tricks.

0 of 5 lessons complete · 113 min total

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  1. Matrix Moves & Digit MathIn-place rotation as transpose-plus-mirror, shrinking boundary walks, marker-row tricks for O(1) space, carry propagation, and fast exponentiation by squaring.Lesson · 16 minNot completed
  2. Rotate = Transpose + FlipOne confusing rotation becomes two clean sub-moves.Animation · 9 minNot completed
  3. Practice: Matrix ChoreographyIn-place rotation, spiral walks, marker-based zeroing, and cycle-detecting digit sums.easymedium×34 problems · 0 solvedPractice · 40 minNot completed
  4. Practice: Digits & PointsCarry propagation, exponentiation by squaring, grade-school multiplication, and diagonal-counting squares.easymedium×34 problems · 0 solvedPractice · 40 minNot completed
  5. Math & Geometry CheckpointRotation decomposition, boundary-pointer management, and overflow-safe digit handling.Checkpoint · 8 minNot completed