Re: Quartic Equation: do you know a procedural way to solve it ?

You want numerical solutions, or formulas with radicals and complex
numbers?

I'd like to know the algorithmic procedure that allows you to find out
the four roots (real or complex, as they are) starting from the
standard form: a*x^4 + b*x^3 + c*x^2 + d*x + e --> (X - X1)*(X -
X2)*(X - X3)*(X - X4) = 0
.

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