René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: math_fontfamily=\"cm\" prevents replacement of minus by unicode minus in `\\mathdefault`","articleBody":"### Bug summary\r\n\r\nAll's in the title (and the examples).\r\n\r\n### Code for reproduction\r\n\r\n```python\r\nfrom pylab import *\r\nfigtext(.5, .6, r\"$\\mathdefault{a-b}$\", math_fontfamily=\"dejavusans\")\r\nfigtext(.5, .5, r\"$\\mathdefault{a-b}$\", math_fontfamily=\"cm\")\r\n```\r\n\r\n### Actual outcome\r\n\r\n![test](https://user-images.githubusercontent.com/1322974/142721335-3da3260d-5cf1-4796-851d-439f9029ad5f.png)\r\nBoth lines use the text default font of DejaVu Sans, but setting math_fontfamily to cm prevented replacement of minus by unicode minus.\r\n\r\n### Expected outcome\r\n\r\nUnicode minus in both cases\r\n\r\n### Additional information\r\n\r\n(I probably have a fix that'll come after tearing down most mathtext deprecations that expire in 3.6, namely getting rid of the `math` kwarg in the various font classes and instead make the minus-\u003eunicode_minus replacement earlier, during the parsing stage.)\r\n\r\n### Operating system\r\n\r\nlinux\r\n\r\n### Matplotlib Version\r\n\r\n3.5\r\n\r\n### Matplotlib Backend\r\n\r\nqt5agg\r\n\r\n### Python version\r\n\r\n39\r\n\r\n### Jupyter version\r\n\r\nENOSUCHLIB\r\n\r\n### Installation\r\n\r\n_No response_","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2021-11-20T09:31:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/21687/matplotlib/issues/21687"}