ℛ
ℛ SCRIPT CAPITAL R
| Codepoint | U+211B | 
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| Comments | 
        
            Riemann Integral | 
    
    
    
| Block | Letterlike Symbols | 
| Sub-Block | Letterlike symbols | 
| Category | Lu / Letter, uppercase | 
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| How to type "ℛ" in Windows? | hold alt type + type 211B release alt  | 
    
| How to type "ℛ" in Linux? | hold ctrl+shift type U 211B release ctrl+shift  |