Definitely $$\sim$$ Positively the Pits

by Cliff Long (Bowling Green State University)

Mathematics Magazine
February, 1990

Subject classification(s): Numerical Differentiation | Numerical Analysis | Analysis | Linear Algebra | Algebra and Number Theory
Applicable Course(s): 4.13 Advanced Linear Algebra | 3.8 Linear/Matrix Algebra | 3.3 Mainstream Calculus III, IV

The author classifies the quadratic forms defined by simple 2 by 2 matrices and illustrates them with corresponding quadratic surfaces.

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