Chilean-born anthropologist and psychologist, Claudio Naranjo is noted for his inter-disciplinary work with mind-altering substances, as well as the Enneagram. He is considered a major figure in the Human Potential Movement[?] and the Fourth Way[?] movement in psychotherapy.
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Note that when computing roots numerically, the usual form of the quadratic formula is not ideal. See Loss of significance for details.
Derivation
The quadratic ...