正せい負ふ

noun

positive and negative (numbers); plus and minus (signs)

Mathematical term for the concept of positive and negative values, including signs and numbers.

• 正せい負ふの符ふ号ごうを間ま違ちがえないように注ちゅう意いしてください。

  Be careful not to mistake the positive and negative signs.

• この計けい算さんでは正せい負ふの数かずを扱あつかいます。

  This calculation deals with positive and negative numbers.

noun

positive and negative (poles); plus and minus (poles)

Extended use for opposite poles or aspects, such as in electricity or abstract contrasts.

• 電でん池ちの正せい負ふを逆ぎゃくに接せつ続ぞくしないでください。

  Do not connect the battery's positive and negative terminals in reverse.