I have been reading the PHP manual in both Japanese and English and have reached the part about operators.
代数演算子 section they talk about
減算 etc, and have a table showing all of the
代数演算子 (you can see it here: http://www.php.net/manual/ja/language.operators.arithmetic.php)
In the Japanese version of the manual they describe
負にする but in the English version they use the word
I wondered if there was a noun in Japanese to describe this, like there is
加算 to describe
Since they use the word
Negation in the English version I thought maybe
否定 in Japanese, but I'm not sure, so if any one knows of a noun to describe this concept any help would be appreciated.