Equation of third degree calculator online

Online calculator which will help you in solving equations of the third degree.
The equations of the third degree are in demand in the solution of physical, mathematical, engineering , scientific research and statistical tasks.
The equation of the third degree has the form (ax3 + bx2 + cx + d = 0), then enter your coefficients (a, b, c, d) and after calculation of the calculator will receive three values X1, X2, X3.

ax3 + bx2 + cx + d = 0
x³ + x² + x+ d = 0

X1:     i
X2:     i
X3:     i