#text "Einstein wrote " $#text "E = mc^2" #text "E" #text "=" #text "m" #text "c" #text "2" #text " inline." #text "∂" #text "u" #text "∂" #text "t" #text "+" #text "(" #text "u" #text "⋅" #text "∇" #text ")" #text "u" #text "=" #text "−" #text "1" #text "ρ" #text "∇" #text "p" #text "\\frac{\\partial \\mathbf{u}}{\\partial t} + (\\mathbf{u} \\cdot \\nabla)\\mathbf{u} = -\\frac{1}{\\rho}\\nabla p" #text "∂" #text "t" #text "∂" #text "u" #text "" #text "+" #text "(" #text "u" #text "⋅" #text "∇" #text ")" #text "u" #text "=" #text "−" #text "ρ" #text "1" #text "" #text "∇" #text "p" #text "Backslash inline " #text "1" #text "5" #text "\\frac{1}{5}" #text "5" #text "1" #text "" #text " and display:" #text "π" #text "4" #text "<" #text "θ" #text "<" #text "π" #text "2" #text "\\frac{\\pi}{4} < \\theta < \\frac{\\pi}{2}" #text "4" #text "π" #text "" #text "<" #text "θ" #text "<" #text "2" #text "π" #text ""$