Carlsbad Math Tutor – The Golden Mean
The Golden Mean
In simple mathematical terms, if a line ab is divided by a point C, such that the ratio of the whole line (AB) to the longer segment (AC) is equal to the ratio of the longer segment (AC) to the smaller segment (CB), then the ratio AB : AC (and, of course, the subset ratio AC : CB) is known as the Golden Mean (? or “phi”)