Найду корень уравнения: x^3+x+3=0
________________ / ________________\ / _____ | / _____ | / 81 3*\/ 741 | ___ / 81 3*\/ 741 | 3 / -- + --------- | ___ \/ 3 *3 / -- + --------- | 1 \/ 2 2 | \/ 3 \/ 2 2 | x1 = - ----------------------- + --------------------- + I*|----------------------- + ---------------------------| ________________ 6 | ________________ 6 | / _____ | / _____ | / 81 3*\/ 741 | / 81 3*\/ 741 | 2*3 / -- + --------- |2*3 / -- + --------- | \/ 2 2 \ \/ 2 2 /
________________ / ________________\ / _____ | / _____ | / 81 3*\/ 741 | ___ / 81 3*\/ 741 | 3 / -- + --------- | ___ \/ 3 *3 / -- + --------- | 1 \/ 2 2 | \/ 3 \/ 2 2 | x2 = - ----------------------- + --------------------- + I*|- ----------------------- - ---------------------------| ________________ 6 | ________________ 6 | / _____ | / _____ | / 81 3*\/ 741 | / 81 3*\/ 741 | 2*3 / -- + --------- | 2*3 / -- + --------- | \/ 2 2 \ \/ 2 2 /
________________ / _____ / 81 3*\/ 741 3 / -- + --------- 1 \/ 2 2 x3 = --------------------- - --------------------- ________________ 3 / _____ / 81 3*\/ 741 3 / -- + --------- \/ 2 2
x1 = -1.21341166276000
x2 = 0.606705831381 - 1.45061224919*i
x3 = 0.606705831381 + 1.45061224919*i