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Solving a Quadratic Equation
To solve for the roots of the quadratic equation [ a x² + b x + c = 0 ] .... type in the constants and click the button. If the roots of the solution are real, this routine will calculate them. If the roots are imaginary, NaN will appear in the answer boxes.
This solution uses x = [ -b +/- sqrt{b² - 4 a c } ] / ( 2 a )