class Kramdown::Converter::Latex

def convert_math(el, _opts) 

def convert_math(el, _opts)
  @data[:packages] += %w[amssymb amsmath amsthm amsfonts]
  if el.options[:category] == :block
    if el.value =~ /\A\s*\\begin\{/
      el.value
    else
      latex_environment('displaymath', el, el.value)
    end
  else
    "$#{el.value}$"
  end
end