異い符ふ号ごう

noun, noun which may take the genitive case particle 'no'

opposite sign; having opposite signs

Mathematics term. Describes two numbers or quantities with opposite signs (one positive, one negative). Often used in the pattern 異符号の or as a noun.

See also: 同符号

• 異い符ふ号ごうの数かずを足たすときは、絶ぜっ対たい値ちの大おおきい方ほうから小ちいさい方ほうを引ひく。

  When adding numbers with opposite signs, subtract the smaller absolute value from the larger one.