Mathematics
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current location：Mathematical operation > History of Mathematical Computation
    arcsin½
    arctan0.15
    arctan20
    arctan0.2
    arctan5
    arctan5
    arctan0.15
    arctan20
    arctan0.2
    arctan5
    arctan5
    arctan20
    arctan0.2
    arctan90
    arctan0.15
    arctan2
    arctan5
    arctan0.2
    arctan1.2
    100/11

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