cos70.1333
    cos70.51333
    0.0258*arcsin0.669
    0.0258arcsin0.669
    cos(1.52)
    0.813*sqrt（1.215*1.215-0.813*0.813）+π*1.25*1.25*arcsin0.669135802469135802
    atan(5/60/π)/120/π
    atan(5/60/π)
    atan1
    cos(1.35)
    0.967/e(100)
    9.57*e-1
    9.57*2
    arcsin1-arctan0.03-arctan6
    sin1-arctan0.03-arctan6
    1＋1/1300（120×106/2600×103+20）/460（7367/500）2×0.69
    884/0
    1÷0.00000001
    16-9
    1.3×1/8×16×6.3262+1.5×1.0×1/8×7.5×6.326^2

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