$$$\operatorname{atan}{\left(-2 \right)}$$$

求$$$\operatorname{atan}{\left(-2 \right)}$$$。

$$$\operatorname{atan}{\left(-2 \right)} = - \operatorname{atan}{\left(2 \right)}\approx -1.107148717794091$$$A

$$$\operatorname{atan}{\left(-2 \right)} = -\left(\frac{180 \operatorname{atan}{\left(2 \right)}}{\pi}\right)^{\circ}\approx -63.434948822922011^{\circ}$$$A

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