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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.
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2014-05-05T06:23:54.417
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2018-05-12T07:23:12.590
2014-05-21T20:16:02.320
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question
mathematics symbols
Inequality symbols in Japanese writing
≦ is used everywhere in Japan, unless it's a paper written in English.
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2014-05-06T00:37:07.443
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2014-05-22T16:50:25.503
2014-05-22T16:50:25.503
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answer
I remember I only used ≦ in elementary and middle schools, but in collage
(computer science major), everyone switched to ≤. I forgot about high school.
So I'm sure both are used, but unless it's something scientific, I think most
people use ≦.
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2018-05-12T07:23:12.590
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2018-05-12T07:23:12.590
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answer