René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"mathtext mishandling of certain exponents","articleBody":"From [the second example for twin axes in AxesGrid1](http://matplotlib.org/mpl_toolkits/axes_grid/users/overview.html#example-2-twin), where the intent was probably to have a \"seconds of angle\" symbol:\n\n```\n$ python\nPython 3.5.1 (default, Dec  7 2015, 12:58:09) \n[GCC 5.2.0] on linux\nType \"help\", \"copyright\", \"credits\" or \"license\" for more information.\n\u003e\u003e\u003e import matplotlib.pyplot as plt; plt.gca().set_xlabel(\"$^{''}$/yr\"); plt.show()\n\u003cmatplotlib.text.Text object at 0x7f6451604f98\u003e\n```\n\n(same result from within ipython with `%matplotlib` active)\n![screenshot_20160116_211600](https://cloud.githubusercontent.com/assets/1322974/12376067/89f58854-bc96-11e5-93b4-7bd371027a44.png)\n\n\u003e EDIT: This part is invalid and should be ignored\n\u003e Weirdly enough, running the same command from with `python -c` a different result:\n\u003e \n\u003e ```\n\u003e $ python -c 'import matplotlib.pyplot as plt; plt.gca().set_xlabel(\"$^{''}$/yr\"); plt.show()'\n\u003e ```\n\u003e \n\u003e ![screenshot_20160116_211836](https://cloud.githubusercontent.com/assets/1322974/12376084/e5a082bc-bc96-11e5-9361-18d534865454.png)\n\u003e \n\u003e (checked without any matplotlibrc).\n\nPreempting @tacaswell to @zblz this time :-)\n","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2016-01-17T05:22:38.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/5864/matplotlib/issues/5864"}