𝕁
𝕁 MATHEMATICAL DOUBLE-STRUCK CAPITAL J
| Codepoint | U+1D541 |
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| Block | Mathematical Alphanumeric Symbols |
| Sub-Block | Double-struck symbols |
| Category | Lu / Letter, uppercase |
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| How to type "𝕁" in Windows? | hold alt type + type 1D541 release alt |
| How to type "𝕁" in Linux? | hold ctrl+shift type U 1D541 release ctrl+shift |