(1.37*10^(-5))*e(14914.60188/673)
    tan12.73
    cos12 +100sin12=
    2*3.14*（12+2）*1/4+2*2
    2*3.14*12*1/4
    √2/2*√2
    √2/2*√2/2
    arccos0.9642
    arccos0.9460
    √(0.8^2+2.8^2)
    √0.8^2+2.8^2
    √(3-1)
    114514+1919810
    85.5/1.22+85.5/(1.22^2)+85.5/(1.22^3)+85.5/(1.22^4)
    sin(5)
    sin(90)
    124+233
    asin0.25
    1*3*5*7*9*11*13*14
    (0.9×(650-0.096)×360)

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