true 0 4 radians decimal true

x f x 3^1.65 x 2^* + 3.8934 x * - 2.857680 - ←

x f x solve 2.7 - 0.63 - 1.68 31 mat

2.857680 - 3.8934 - 1.65 141 mat polyroots 0.63 - 1.68 2.7 - 31 mat

2.7 - f 0

0.63 - f 0

Корни найдены верно

1.68 f 0