arctanx-arctan0.25x＝46
    arctanx-arctan0.25x＝46
    13115.72/3.64=150*0.45*0.45/0.55/0.55/0.55*0.0000184*x/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185x*x/0.002
    11872/2.72=150*0.45*0.45*0.00001904*X/0.55/0.55/0.55/0.002/0.002+1.75*0.45*1.185*X*X/0.55/0.55/0.55/0.002
    13115.72=150*0.45*0.45/0.55/0.55/0.55*0.0000184*x/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*x*x/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    13115.72 = 150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X/0.002/0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    arccot1.394
    13115.72=150*（1-0.55）*0.45/0.55/0.55/0.55*0.0000184*X*0.002+1.75*0.45/0.55/0.55/0.55*1.185*X*X/0.002
    arccotx=1.394
    15=100×（X-60）/（X×30/100）
    0.181×sinx/cos(x-5)+0.01+0.01×sinx=0.181
    eiπ

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