Mathematics
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    10000-200
    1670*36*(126.85-18)
    e^(-0.6845)
    (-0.213*3.14)/0.977
    sqrt(1-0.0453)
    arctan10-arctan166.667-arctan0.6-arctan0.15
    arctan10-arctan166.667-90-arctan0.6-arctan0.15+180
    -㏒(10,0.000024)
    √0.00000000058
    √0.000000000058
    √5.8×10^-10
    -㏒(10,1.3×10^-3)
    5.8×10^-10
    √(5.8×10^-10)
    12+3
    0-3
    arctan10
    arctan2.3/0.23
    -arctan(2.3/0.23)+arctan(2.3/0.0132)+arctan(2.3*0.25)+arctan(2.3*0.0625)-90+180
    -arctan(2.3/0.23)+arctan(2.3/0.0132)+arctan(2.3*0.25)+arctan(2.3*0.0625)

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