Lesson 9 of 20 · about 16 min
Determinants
Every 2×2 matrix stretches or shrinks areas by one fixed factor, and that factor is a single number called the determinant. Negative means the plane got flipped over; zero means it got squashed flat. You'll watch the unit square grow, flip and collapse, discover that determinants multiply, and use them to measure the area of any polygon.
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In this lesson you'll learn:
- Determinant
- Determinant zero
Free to try in F08 Linear Algebra:
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