Last Updated
：2025/11/19
discriminant
Noun
Japanese Meaning
（代数学）多項式（特に二次方程式など）の根に関する情報を与える式。例えば、二次方程式 ax² + bx + c = 0 の場合、D = b² - 4ac の値によって、解が互いに異なる実数、重複する実数、あるいは複素数であるかを判断するために利用される。
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（ plural ）
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(algebra) An expression that gives information about the roots of a polynomial; for example, the expression D = b² - 4ac determines whether the roots of the quadratic equation ax² + bx + c = 0 are real and distinct (D > 0), real and equal (D = 0) or complex (D < 0).
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discriminant
The discriminant can tell you whether a quadratic equation has real or complex roots.
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The discriminant can tell you whether a quadratic equation has real or complex roots.
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