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直接输入数学计算式，点击“下一步”按钮，即可获得计算答案。
它支持数学函数（包括三角函数）。
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20lg70
lg3
-90-arctan(0.12×100)-arctan(0.02×100)-arctan(1/0.205×100)-arctan(1/23.894×100)+arctan(1/1.3×100)+arctan(1/7.073×100) =
-90-arctan(0.12×70)-arctan(0.02×70)-arctan(1/0.205×70)-arctan(1/23.894×70)+arctan(1/1.3×70)+arctan(1/7.073×70) =
A(6187)
-90-arctan(0.12×0.1)-arctan(0.02×0.1)-arctan(1/0.205×0.1)-arctan(1/23.894×0.1)+arctan(1/1.3×0.1)+arctan(1/7.073×0.1) =
A(61)
-90-arctan(0.12×100)-arctan(0.02×100)-arctan(1/0.205×100)-arctan(1/23.894×100)+arctan(1/1.3×100)+arctan(1/7.073×100) =
-90-arctan(0.12×100)-arctan(0.02×100)-arctan(1/0.205×100)-arctan(1/23.894×100)+arctan(1/1.3×100)+arctan(1/7.073×100) =
-90-arctan(0.12×50)-arctan(0.02×50)-arctan(1/0.205×50)-arctan(1/23.894×50)+arctan(1/1.3×50)+arctan(1/7.073×50) =
-90-arctan(0.12×24.15)-arctan(0.02×24.15)-arctan(1/0.205×24.15)-arctan(1/23.894×24.15)+arctan(1/1.3×24.15)+arctan(1/7.073×24.15) =
-90-arctan(0.12×23.894)-arctan(0.02×23.894)-arctan(1/0.205×23.894)-arctan(1/23.894×23.894)+arctan(1/1.3×23.894)+arctan(1/7.073×23.894) =
-90-arctan(0.12×8.33)-arctan(0.02×8.33)-arctan(1/0.205×8.33)-arctan(1/23.894×8.33)+arctan(1/1.3×8.33)+arctan(1/7.073×8.33) =
-90-arctan(0.12×7.073)-arctan(0.02×7.073)-arctan(1/0.205×7.073)-arctan(1/23.894×7.073)+arctan(1/1.3×7.073)+arctan(1/7.073×7.073) =
-90-arctan(0.12×1.3)-arctan(0.02×1.3)-arctan(1/0.205×1.3)-arctan(1/23.894×1.3)+arctan(1/1.3×1.3)+arctan(1/7.073×1.3) =
-90-arctan(0.12×1.3)-arctan(0.02×1.3)-arctan(1/0.205×0.1.3)-arctan(1/23.894×1.3)+arctan(1/1.3×1.3)+arctan(1/7.073×1.3) =
-90-arctan(0.12×0.205)-arctan(0.02×0.205)-arctan(1/0.205×0.205)-arctan(1/23.894×0.205)+arctan(1/1.3×0.205)+arctan(1/7.073×0.205) =
-90-arctan(0.12×0.205)-arctan(0.02×0.205)-arctan(1/0.205×0.205)-arctan(1/23.894×0.205)+arctan(1/1.3×0.205)+arctan(1/7.073×0.205) =
-90-arctan(0.12×0.1)-arctan(0.02×0.1)-arctan(1/0.205×0.1)-arctan(1/23.894×0.1)+arctan(1/1.3×0.1)+arctan(1/7.073)×0.1 =
0-44444+9992
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lg3
-90-arctan(0.12×100)-arctan(0.02×100)-arctan(1/0.205×100)-arctan(1/23.894×100)+arctan(1/1.3×100)+arctan(1/7.073×100) =
-90-arctan(0.12×70)-arctan(0.02×70)-arctan(1/0.205×70)-arctan(1/23.894×70)+arctan(1/1.3×70)+arctan(1/7.073×70) =
A(6187)
-90-arctan(0.12×0.1)-arctan(0.02×0.1)-arctan(1/0.205×0.1)-arctan(1/23.894×0.1)+arctan(1/1.3×0.1)+arctan(1/7.073×0.1) =
A(61)
-90-arctan(0.12×100)-arctan(0.02×100)-arctan(1/0.205×100)-arctan(1/23.894×100)+arctan(1/1.3×100)+arctan(1/7.073×100) =
-90-arctan(0.12×100)-arctan(0.02×100)-arctan(1/0.205×100)-arctan(1/23.894×100)+arctan(1/1.3×100)+arctan(1/7.073×100) =
-90-arctan(0.12×50)-arctan(0.02×50)-arctan(1/0.205×50)-arctan(1/23.894×50)+arctan(1/1.3×50)+arctan(1/7.073×50) =
-90-arctan(0.12×24.15)-arctan(0.02×24.15)-arctan(1/0.205×24.15)-arctan(1/23.894×24.15)+arctan(1/1.3×24.15)+arctan(1/7.073×24.15) =
-90-arctan(0.12×23.894)-arctan(0.02×23.894)-arctan(1/0.205×23.894)-arctan(1/23.894×23.894)+arctan(1/1.3×23.894)+arctan(1/7.073×23.894) =
-90-arctan(0.12×8.33)-arctan(0.02×8.33)-arctan(1/0.205×8.33)-arctan(1/23.894×8.33)+arctan(1/1.3×8.33)+arctan(1/7.073×8.33) =
-90-arctan(0.12×7.073)-arctan(0.02×7.073)-arctan(1/0.205×7.073)-arctan(1/23.894×7.073)+arctan(1/1.3×7.073)+arctan(1/7.073×7.073) =
-90-arctan(0.12×1.3)-arctan(0.02×1.3)-arctan(1/0.205×1.3)-arctan(1/23.894×1.3)+arctan(1/1.3×1.3)+arctan(1/7.073×1.3) =
-90-arctan(0.12×1.3)-arctan(0.02×1.3)-arctan(1/0.205×0.1.3)-arctan(1/23.894×1.3)+arctan(1/1.3×1.3)+arctan(1/7.073×1.3) =
-90-arctan(0.12×0.205)-arctan(0.02×0.205)-arctan(1/0.205×0.205)-arctan(1/23.894×0.205)+arctan(1/1.3×0.205)+arctan(1/7.073×0.205) =
-90-arctan(0.12×0.205)-arctan(0.02×0.205)-arctan(1/0.205×0.205)-arctan(1/23.894×0.205)+arctan(1/1.3×0.205)+arctan(1/7.073×0.205) =
-90-arctan(0.12×0.1)-arctan(0.02×0.1)-arctan(1/0.205×0.1)-arctan(1/23.894×0.1)+arctan(1/1.3×0.1)+arctan(1/7.073)×0.1 =
0-44444+9992
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