Найду корень уравнения: x^3-x+2=0
_______________ / _______________\ 3 / ____ | ___ ___ 3 / ____ | 1 \/ 27 + 3*\/ 78 | \/ 3 \/ 3 *\/ 27 + 3*\/ 78 | x1 = -------------------- + ------------------ + I*|- -------------------- + ------------------------| _______________ 6 | _______________ 6 | 3 / ____ | 3 / ____ | 2*\/ 27 + 3*\/ 78 \ 2*\/ 27 + 3*\/ 78 /
_______________ / _______________\ 3 / ____ | ___ ___ 3 / ____ | 1 \/ 27 + 3*\/ 78 | \/ 3 \/ 3 *\/ 27 + 3*\/ 78 | x2 = -------------------- + ------------------ + I*|-------------------- - ------------------------| _______________ 6 | _______________ 6 | 3 / ____ | 3 / ____ | 2*\/ 27 + 3*\/ 78 \2*\/ 27 + 3*\/ 78 /
_______________ 3 / ____ 1 \/ 27 + 3*\/ 78 x3 = - ------------------ - ------------------ _______________ 3 3 / ____ \/ 27 + 3*\/ 78
x1 = -1.52137970680000
x2 = 0.760689853402 + 0.857873626595*i
x3 = 0.760689853402 - 0.857873626595*i