Last Updated：2025/11/20

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(mathematics) the symbol ∓, meaning minus or plus, used alongside the plus-minus sign to show that a negative value is to be taken where the positive value is indicated by the plus-minus sign, and vice versa (as in (x ± 1) / (x ∓ 2), which means (x + 1) / (x - 2) and (x - 1) / (x + 2)).

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minus-plus sign

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Source Word

minus-plus sign

Noun

(mathematics) the symbol ∓, meaning "minus or plus", used alongside the plus-minus sign to show that a negative value is to be taken where the positive value is indicated by the plus-minus sign, and vice versa (as in (x ± 1) / (x ∓ 2), which means (x + 1) / (x - 2) and (x - 1) / (x + 2)).

Japanese Meaning

数学において、プラス・マイナス記号（±）と対をなす記号で、正負を逆転させる記号（∓）。つまり、(x ± 1)/(x ∓ 2) のように、プラス・マイナス記号が正の値を示す場合、対応する符号は負の値を示し、その逆を意味する。