释义 |
Mean proportional
(Math.) | the square root of their product. |
See also: Mean Mean Proportional
mean proportional[′mēn prə′pȯr·shən·əl] (mathematics) For two numbers a and b, a number x, such that x / a = b / x. Mean Proportional A mean proportional between two positive numbers is a number equal to the square root of their product. Thus, if a:x = x:b, then x is a mean proportional between a and b, and . The mean proportional x is also called the geometric mean of a and b. |