Inequality symbols in Japanese writing


In English, when we wish to write a non-strict mathematical inequality, we
will write something like this:

> x ≤ 3 or y ≥ 5

In Japanese writing, however, I have also seen the symbol ≦ used to mean "less
than or equal to". Which of ≤ and ≦ is more common in Japanese usage? I would
be interested to know about any differences that exist across various
media/genres of writing, e.g. news reports vs. scholarly papers vs. textbooks.




≦ is used everywhere in Japan, unless it's a paper written in English.




≦ is used everywhere in Japan, unless it's a paper written in English.

