The Louvre Museum as seen through the Louvre Pyramid glass in Paris, France. Smithsonian Institution, Washington, D.C. The Smithsonian is the worldâs largest research and museum complex, with 19 museums and galleries, the National Zoological Park, and various research stations.
Geometric Mean. The Geometric Mean is a special type of average where we multiply the numbers together and then take a square root (for two numbers), cube root (for three numbers) etc. First we multiply them: 2 Ã 18 = 36. Then (as there are two numbers) take the square root: â36 = 6.
Geometric Meaning of the Geometric Mean. The geometric mean of two positive numbers a and b is the (positive) number g whose square equals the product ab : g Â² = ab. While it is possible to (at least partially) adapt the definition to handle negative numbers, I do not believe this is ever done.he length of the common tangent of two circles of diameters a and b that are tangent externally is the geometric mean of the diameters: The geometric mean appeared as a tangent to a circle in John Wallis' very first geometric interpretation of complex numbers: