Quadratic from sum and product of roots (Monic quadratic with roots α,β is x² minus (sum)x plus (product))
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Monic quadratic with roots α,β is x² minus (sum)x plus (product)
What each symbol means
| Symbol | What it stands for |
|---|---|
| P | αβ |
| S | α+β |
When to use this
Scalable by any nonzero a.