[p_map_formula]
"$r_u$" = '<img src="formulae/5.png" alt="formula" />'
"$r_v$" = '<img src="formulae/6.png" alt="formula" />'
"$E = m c^2$" = '<img src="formulae/1.png" alt="formula" />'
'$\nabla^2 u$' = '<img src="formulae/9.png" alt="formula" />'
"\\begin{eqnarray*}\n\t\\dfrac{\\partial u}{\\partial t} & = & r_u \\nabla^2 u - uv^2 + f_r \\times \\left(1 - u\\right) \\\\\n\t\\dfrac{\\partial v}{\\partial t} & = & r_v \\nabla^2 v + uv^2 - \\left(f_r + k_r\\right) \\times v\n\\end{eqnarray*}" = '<img src="formulae/2.png" alt="formula" />'
"$k_r$" = '<img src="formulae/7.png" alt="formula" />'
"$v$" = '<img src="formulae/4.png" alt="formula" />'
'$\nabla^2 v$' = '<img src="formulae/10.png" alt="formula" />'
"$f_r$" = '<img src="formulae/8.png" alt="formula" />'
"$u$" = '<img src="formulae/3.png" alt="formula" />'