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指数積分

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Wikipedia definition

1. Exponential integralIn mathematics, the exponential integral is a special function defined on the complex plane given the symbol Ei.
Read “Exponential integral” on English Wikipedia
Read “指数積分” on Japanese Wikipedia
Read “Exponential integral” on DBpedia

0.6760931990840028

9 strokes. JLPT N3. Jōyō kanji, taught in grade 3.

指

finger, point to, indicate, put into, play (chess), measure (ruler)

Kun: ゆび、さ.す、 -さ.し

On: シ

0.43037330522336525

13 strokes. JLPT N3. Jōyō kanji, taught in grade 2.

数

number, strength, fate, law, figures

Kun: かず、かぞ.える、しばしば、せ.める、わずらわ.しい

On: スウ、ス、サク、ソク、シュ

3.1463778125113593

16 strokes. JLPT N3. Jōyō kanji, taught in grade 4.

積

volume, product (x*y), acreage, contents, pile up, stack, load, amass

Kun: つ.む、 -づ.み、つ.もる、つ.もり

On: セキ

0.13958053142379412

4 strokes. Jōyō kanji, taught in grade 2.

分

part, minute of time, segment, share, degree, one's lot, duty, understand, know, rate, 1%, chances, shaku/100

Kun: わ.ける、わ.け、わ.かれる、わ.かる、わ.かつ

On: ブン、フン、ブ

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