Positive Definite Tensor

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More things to try:

• 135/216 - 12/25
• conjugate: 1+3i+4j+3k, 1+-1i-j+3k
• is (sqrt(8)-sqrt(2))^2 irrational?

Cite this as:

Weisstein, Eric W. "Positive Definite Tensor." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PositiveDefiniteTensor.html

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