在使用latex编辑algorithm时，如何控制算法的宽度呢？

documentclass{article}

usepackage{algorithm}

usepackage{algorithmic}
floatstyle{plain}
newfloat{myalgo}{tbhp}{mya}

newenvironment{Algorithm}[2][tbh]%
{begin{myalgo}[#1]
centering
begin{minipage}{#2}
begin{algorithm}[H]}%
{end{algorithm}
end{minipage}
end{myalgo}}

begin{document}
begin{Algorithm}[t]{10cm}
caption{Does work, though no nice solution.}

begin{algorithmic}

STATE your algo

end{algorithmic}
end{Algorithm}
end{document}