tikz：如何绘制流程图？

Question

我做了流程图，我只有一个要求，它是关于单词 ODE15s，当我在代码中写入它时，我把它放在虚线框内，我希望它在外面。非常感谢你的帮助

here is the line that executes it
\node[draw, ultra thick, dashed, fit={($(in5.north)+(-4cm,0.25cm)$)($(b)+(4cm,0)$)}, ] {ODE15s};

Answer 1

如果没有完整的代码，很难回答……尽管如此，我建议

…
\node (box)[draw, ultra thick, dashed, fit={($(in5.north)+(-4cm,0.25cm)$)($(b)+(4cm,0)$)}, ] {}; % remove the label and add a name
\node at (box.east) {ODE15s}; % place the label
…