<<< native
[ EArray
    [ AlignCenter , AlignCenter , AlignCenter ]
    [ [ []
      , [ EText TextNormal "ds=true" ]
      , [ EText TextNormal "ds=false" ]
      ]
    , [ [ EText TextNormal "stretch=t, large=t" ]
      , [ EGrouped
            [ EDelimited
                "\8747"
                ""
                [ Right (EFraction NormalFrac (EIdentifier "x") (ENumber "5")) ]
            , ESymbol Rel "="
            , EDelimited "\8747" "" [ Right (EIdentifier "x") ]
            ]
        ]
      , [ EGrouped
            [ EDelimited
                "\8747"
                ""
                [ Right (EFraction NormalFrac (EIdentifier "x") (ENumber "5")) ]
            , ESymbol Rel "="
            , EDelimited "\8747" "" [ Right (EIdentifier "x") ]
            ]
        ]
      ]
    , [ [ EText TextNormal "stretch=f, large=t" ]
      , [ EGrouped
            [ EGrouped
                [ ESymbol Op "\8747"
                , EFraction NormalFrac (EIdentifier "x") (ENumber "5")
                ]
            , ESymbol Rel "="
            , EGrouped [ ESymbol Op "\8747" , EIdentifier "x" ]
            ]
        ]
      , [ EGrouped
            [ EGrouped
                [ ESymbol Op "\8747"
                , EFraction NormalFrac (EIdentifier "x") (ENumber "5")
                ]
            , ESymbol Rel "="
            , EGrouped [ ESymbol Op "\8747" , EIdentifier "x" ]
            ]
        ]
      ]
    , [ [ EText TextNormal "stretch=t, large=f" ]
      , [ EGrouped
            [ EDelimited
                "\8747"
                ""
                [ Right (EFraction NormalFrac (EIdentifier "x") (ENumber "5")) ]
            , ESymbol Rel "="
            , EDelimited
                "\8747"
                ""
                [ Right (EFraction NormalFrac (EIdentifier "A") (ENumber "5")) ]
            , ESymbol Rel "="
            , EDelimited "\8747" "" [ Right (EIdentifier "x") ]
            ]
        ]
      , [ EGrouped
            [ EDelimited
                "\8747"
                ""
                [ Right (EFraction NormalFrac (EIdentifier "x") (ENumber "5")) ]
            , ESymbol Rel "="
            , EDelimited
                "\8747"
                ""
                [ Right (EFraction NormalFrac (EIdentifier "A") (ENumber "5")) ]
            , ESymbol Rel "="
            , EDelimited "\8747" "" [ Right (EIdentifier "x") ]
            ]
        ]
      ]
    , [ [ EText TextNormal "stretch=f, large=f" ]
      , [ EGrouped
            [ EGrouped
                [ ESymbol Op "\8747"
                , EFraction NormalFrac (EIdentifier "x") (ENumber "5")
                ]
            , ESymbol Rel "="
            , EGrouped [ ESymbol Op "\8747" , EIdentifier "x" ]
            ]
        ]
      , [ EGrouped
            [ EGrouped
                [ ESymbol Op "\8747"
                , EFraction NormalFrac (EIdentifier "x") (ENumber "5")
                ]
            , ESymbol Rel "="
            , EGrouped [ ESymbol Op "\8747" , EIdentifier "x" ]
            ]
        ]
      ]
    ]
]
>>> eqn
matrix{
ccol{ {""} above {roman "stretch=t, large=t"} above {roman "stretch=f, large=t"} above {roman "stretch=t, large=f"} above {roman "stretch=f, large=f"} }
ccol{ {roman "ds=true"} above {left ∫ x over 5 right "" = left ∫ x right ""} above {{int x over 5} = {int x}} above {left ∫ x over 5 right "" = left ∫ A over 5 right "" = left ∫ x right ""} above {{int x over 5} = {int x}} }
ccol{ {roman "ds=false"} above {left ∫ x over 5 right "" = left ∫ x right ""} above {{int x over 5} = {int x}} above {left ∫ x over 5 right "" = left ∫ A over 5 right "" = left ∫ x right ""} above {{int x over 5} = {int x}} }
}