7178.67/528.71
    −75999.85009*sin(-15)/sqrt(74746.76sin(-15)+154072.92)-2840371277.3566*cos(-15)*cos(-15)/(74746.76sin(-15)+154072.92）/sqrt(74746.76sin(-15)+154072.92)
    arctan3-arctan（1/3）-arctan（15/90）
    arcsin0.153
    arctan10-arctan100-arctan0.5-arctan0.125
    arctan10+arctan100-arctan0.5-arctan0.125
    arctan2.236+arctan0.559
    tan1.2
    cos0.75
    2*6
    1/(2*0.8706532298306+1)+1/1.7014007081444
    arctan0.80560283257763727567937898134265/3.1415926
    arctan0.80560283257763727567937898134265
    360-54.18
    e2
    −75999.85009*sin(90)/sqrt(74746.76sin(90)+154072.92)-2840371277.3566*cos(90)*cos(90)/(74746.76sin(90)+154072.92）/sqrt(74746.76sin(90)+154072.92)
    1.1^-5
    1000（1+10%）^-5
    (−1)10 × 2 + (−2)3 ÷ 4
    0.9×360×3093×（725-83/2）+360×4418×（585-83/2）+360×1963×（83/2-25）

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