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
同符号の数を足すと、絶対値の和に同じ符号がつく。
When you add numbers with the same sign, the sum gets the same sign as the sum of their absolute values.
この式では、aとbが同符号であることが前提だ。
This formula assumes that a and b have the same sign.