将普通字符串转换为乳胶字符串以在 matplotlib 中使用
问题描述
所以我知道如果我想在我的绘图中使用 LaTeX 字符串而不是例如 "sin(x)"，我应该使用 r"sin(x)".
So I know that if I want to use a LaTeX string in my plots I should instead of for example "sin(x)", I should use r"sin(x)".
但是如果我有 a = "sin(x)" 并且我现在想使用这个 a 作为我的绘图标签，我该如何将它转换为 <代码>r"sin(x)"?当我这样做时 type(r"sin(x))" 只是说字符串.
But if I have a = "sin(x)" and I now want to use this a as my plot label, how can I convert it to r"sin(x)"? When I do type(r"sin(x))" is just says string.
解决方案
请注意，要激活 MathText，字符串必须位于美元符号 ($) 之间.
Mind that to have MathText activated the string must be in between Dollar signs ($).
如果您的乳胶包含反斜杠，您需要从头开始使用原始字符串
In case your latex contains backslashes you need to either use a raw string from the beginning
a = r"$ an(
ucdot x)$"
或转义反斜杠
a = "$\tan(\nu\cdot x)$"
如果您尝试其他答案中的类似内容，您会得到意想不到的结果
If you try something like in the other answer, you'd get unexpected results
a = " an(
ucdot x)"
b = r"$"+a+"$"
ax.plot(x, y, label=b)
结果
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