Unicode Character 'DOUBLE-STRUCK CAPITAL R' (U+211D) | 
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DOUBLE-STRUCK CAPITAL R
			DOUBLE-STRUCK CAPITAL R
| Unicode Data | |
|---|---|
| Name | DOUBLE-STRUCK CAPITAL R | 
| Block | Letterlike Symbols | 
| Category | Letter, Uppercase [Lu] | 
| Combine | 0 | 
| BIDI | Left-to-Right [L] | 
| Decomposition | <font> LATIN CAPITAL LETTER R (U+0052) | 
| Mirror | N | 
| Old name | DOUBLE-STRUCK R | 
| Index entries | numbers, real R, DOUBLE-STRUCK CAPITAL real numbers set of real numbers, the  | 
		
| Comments | the set of real numbers | 
		
| Approximations | <font> 0052 latin capital letter r | 
		
| Version | Unicode 1.1.0 (June, 1993) | 
| Encodings | |
|---|---|
| HTML Entity (decimal) | ℝ | 
| HTML Entity (hex) | ℝ | 
| HTML Entity (named) | ℝ: ℝ ℝ: ℝ  | 
		
| How to type in Microsoft Windows | Alt +211D | 
	
| UTF-8 (hex) | 0xE2 0x84 0x9D (e2849d) | 
| UTF-8 (binary) | 11100010:10000100:10011101 | 
| UTF-16 (hex) | 0x211D (211d) | 
| UTF-16 (decimal) | 8,477 | 
| UTF-32 (hex) | 0x0000211D (211d) | 
| UTF-32 (decimal) | 8,477 | 
| C/C++/Java source code | "\u211D" | 
| Python source code | u"\u211D" | 
| More... | |
| Java Data | |
|---|---|
| string.toUpperCase() | ℝ | 
| string.toLowerCase() | ℝ | 
| Character.UnicodeBlock | LETTERLIKE_SYMBOLS | 
| Character.charCount() | 1 | 
| Character.getDirectionality() | DIRECTIONALITY_LEFT_TO_RIGHT [0] | 
| Character.getNumericValue() | -1 | 
| Character.getType() | 1 | 
| Character.isDefined() | Yes | 
| Character.isDigit() | No | 
| Character.isIdentifierIgnorable() | No | 
| Character.isISOControl() | No | 
| Character.isJavaIdentifierPart() | Yes | 
| Character.isJavaIdentifierStart() | Yes | 
| Character.isLetter() | Yes | 
| Character.isLetterOrDigit() | Yes | 
| Character.isLowerCase() | No | 
| Character.isMirrored() | No | 
| Character.isSpaceChar() | No | 
| Character.isSupplementaryCodePoint() | No | 
| Character.isTitleCase() | No | 
| Character.isUnicodeIdentifierPart() | Yes | 
| Character.isUnicodeIdentifierStart() | Yes | 
| Character.isUpperCase() | Yes | 
| Character.isValidCodePoint() | Yes | 
| Character.isWhitespace() | No |