同どう符ふ号ごう

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

same sign; matching sign

Mathematics term referring to numbers or quantities that share the same sign (both positive or both negative). Often used in the pattern 同符号の or 同符号である. Antonym: 異符号 (opposite sign).

See also: 異符号

• 同どう符ふ号ごうの数かずを足たすと、絶