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Questions tagged [mathematics]

数学. The Japanese language as used in mathematical writing.

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19 votes
3 answers

How do you read simple arithmetic equations in Japanese?

My dictionary (EN → JP) suggests to translate "Three multiplied by four is twelve" as 3 × 4 = 12 without giving a hint as to how to read this in Japanese. How do you read simple arithmetic ...
Tobias's user avatar
  • 948
16 votes
3 answers

Standard mathematical operations, expressed in Japanese

First-time poster on this channel, so please forgive me if I screw anything up... I'm currently writing a "Japanese Calculator" program as part of a personal project I'm working on which takes rōmaji ...
Eliseo D'Annunzio's user avatar
15 votes
4 answers

The etymology of 関手【かんしゅ】

In Japanese mathematics, the word ‘functor’ is translated as 関手【かんしゅ】. What is the etymology of this word? I suspect that it is a pun on 関数 (function). This leads to two further questions: Why 関手 ...
Zhen Lin's user avatar
  • 4,880
14 votes
6 answers

Japanese dictionary for mathematics/computer science jargon [closed]

I study mathematics and computer science, and I'm starting to learn japanese. Could you suggest me dictionaries/sites/etc where I could learn terminology on these subjects?
Vicfred's user avatar
  • 565
13 votes
2 answers

How do you say "if and only if" in Japanese?

I would like to know how to express mandatory conditions in Japanese. Since Japanese distinguishes between different types of languages, I should probably ask more precisely: What is the right way to ...
Dominik's user avatar
  • 751
10 votes
3 answers

What's the difference between 三角 and 三角形?

I just had this terrifying conversation: What is "triangle" in Japanese? me: 三角 right? Then what's 三角形? me: Uhh... triangle? I've confirmed both of these translate to "triangle". ...
Avery's user avatar
  • 2,767
6 votes
1 answer

Maths sentences: 足す and 掛ける

I noticed a lack of case marking particles in mathematical sentences: 1足す2は3である。 3掛ける4は12である。 足す and 掛ける are verbs, does subject and object analysis apply to this? Do they take on the ...
Flaw's user avatar
  • 20k
0 votes
3 answers

Problem in understanding math problem in japanese

I got question like this maybe some math question in japanese 179からある数これを引いたら、残りは12になりました。ある数はいくつですか。 Suppose x is the number that the question ask First i thought like x - 179=12 Somewhat confuse ...
Devina Muljono's user avatar