by Reginald King Mark Bebbington THE resurgence of light music both on disc and latterly in the concert hall-thanks to conductors like John Wilson-has been a phenomenon of the last 20 years.
Golden Ratio. The golden ratio (symbol is the Greek letter phi shown at left) is a special number approximately equal to 1.618. It appears many times in geometry, art, architecture and other areas.
The (Sigma sign) is the 18th letter in the Greek alphabet. Mathematically, Sigma is a summation notation which basically means âsum it upâ. This math symbol was first used by Leonhard Euler, a Swiss mathematician, in representing the addition of a series of mathematical expressions. Golden Ratio Another popular math symbol is the Golden Ratio which is also called the divine proportion or golden section or golden mean.