<<< native
[ EText TextNormal "Inline ceiling, display style, normal line\160"
, EDelimited
    "\8968"
    "\8969"
    [ Right
        (EFraction
           NormalFrac
           (EGrouped
              [ EMathOperator "sin" , ESymbol Ord "\8289" , EIdentifier "\952" ])
           (EIdentifier "M"))
    ]
, EText TextNormal "\160the end."
]
>>> eqn
roman "Inline ceiling, display style, normal line " left ⌈ {sin  theta} over M right ⌉ roman " the end."