Surprise you can use those character like “∫ φ π”. Thought you need to say pig e... | Hacker News

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ngcc_hk on May 30, 2019 | parent | context | favorite | on: Mathematics all-in-one cheat-sheet (2013) [pdf]

Surprise you can use those character like “∫ φ π”. Thought you need to say pig etc.

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