\\frac{x^3}{3}\\right|_0^1`,
          },
          {
            title: '<kbd>\\left</kbd>...<kbd>\\right</kbd>',
            latex: `\\left( \\sum_{k=1}^n a_k b_k \\right)^{\\!\\!2} \\leq
            \\left( \\sum_{k=1}^n a_k^2 \\right) \\left( \\sum_{k=1}^n b_k^2 \\right)`,
          },
          {
            title:
              '<kbd>\\left</kbd>...<kbd>\\middle</kbd>...<kbd>\\right</kbd>',
            latex: `\\left\\lbrace a \\middle\\mid \\frac12 \\right \\rbrace`,
          },
          {
        