class Kramdown::Converter::Html

def convert_math(el, indent)
  if (result = format_math(el, :indent => indent))
    result
  elsif el.options[:category] == :block
    format_as_block_html('pre', el.attr, "$$\n#{el.value}\n$$", indent)
  else
    format_as_span_html('span', el.attr, "$#{el.value}$")
  end
end