U+212F Script Small E
U+212F was added in Unicode version 1.1 in 1993. It belongs to the block
This character is a Lowercase Letter and is commonly used, that is, in no specific script. Znak jest również znany jako error i natural exponent.
The glyph is a font version of the glyph
Wikipedia ma następujące informacje na temat tej współrzędnej kodowej:
The number e is a mathematical constant, approximately equal to 2.71828, that is the base of the natural logarithm.
The number e is sometimes called Euler's number, after the Swiss mathematician Leonhard Euler, though this can invite confusion with Euler's constant, a different constant typically denoted . Alternatively, e can be called Napier's constant after John Napier. The constant was discovered by the Swiss mathematician Jacob Bernoulli while studying compound interest.
The number e is of great importance in mathematics, alongside 0, 1, π, and i. All five appear in one formulation of Euler's identity and play important and recurring roles across mathematics. Like the constant π, e is irrational, meaning that it cannot be represented as a ratio of integers, and moreover it is transcendental, meaning that it is not a root of any non-zero polynomial with rational coefficients. To 40 decimal places, the value of e is:
Reprezentacje
System | Reprezentacje |
---|---|
Nº | 8495 |
UTF-8 | E2 84 AF |
UTF-16 | 21 2F |
UTF-32 | 00 00 21 2F |
Adres URL cytowany | %E2%84%AF |
HTML hex reference | ℯ |
Błędne windows-1252 Mojibake | ℯ |
HTML named entity | ℯ |
alias | error |
alias | natural exponent |
LATEX | \mathscr{e} |
Powiązane znaki
Znaki mylone
Gdzie indziej
Kompletny opis
Właściwość | Wartość |
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1.1 (1993) | |
SCRIPT SMALL E | |
— | |
Letterlike Symbols | |
Lowercase Letter | |
Common | |
Left To Right | |
Not Reordered | |
font | |
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✔ | |
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✘ | |
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✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
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Any | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✔ | |
✘ | |
✘ | |
0 | |
0 | |
0 | |
✘ | |
None | |
— | |
NA | |
Other | |
— | |
✘ | |
✘ | |
✔ | |
✘ | |
Yes | |
Yes | |
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No | |
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No | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Lower | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Alphabetic Letter | |
✘ | |
✔ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
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None | |
neutral | |
Not Applicable | |
— | |
No_Joining_Group | |
Non Joining | |
Alphabetic | |
none | |
not a number | |
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R |