lthmath: sambolic: lthmath: Enjoy Christmas preparations like a true mathematician ;) #christmastree #mathematician #math This is my first time seeing “sen” instead of “sin” for sine. Can anyone comment/explain? In Portugal you write sen

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lthmath: sambolic: lthmath: Enjoy Christmas preparations like a true mathematician ;) #christmastree #mathematician #math This is my first time seeing “sen” instead of “sin” for sine. Can anyone comment/explain? In Portugal you write sen

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