Stationary Point Separation in a Cubic

Rarely Tested

Stationary Point Separation in a Cubic

For:

$$f(x)=ax^3+bx^2+cx+d$$

the stationary points are:

$$x=\frac{-b\pm\sqrt{b^2-3ac}}{3a}$$

when:

$$b^2-3ac\geq0$$

Usage

- Used to obtain the coordinates of the stationary points of a cubic.

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