Mathematics
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    lg7
    lg4
    lg5
    -arctan(0.25)-arctan(1.25)-90
    (3709.82*ln(5.7*90.14673594))/(1.2302686*90.14673594)
    -arctan(1)-arctan(5)+90
    -arctan(-1)-arctan(-5)+90
    -arctan(-1
    -arctan(-2.236
    -arctan(-1.118
    -arctan(-0.447
    -arctan(0.1
    6÷(4/9)
    4÷6/11
    e^1/2
    e^0
    6÷4/9
    sqrt173482762487364472837634472834
    114514*(114*514+(114*51*4+(114*(51-4)+(114+5*1-4))))+(114*514+(114*(51+4)+(-1+14+5*14)))
    (707*2^(1/2)*622142340213838787^(1/2))/21873270400000

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