Question

how to find characteristics of log?

Answer 1

Consider a number N > 0.Then, let the value of log 10 N consist of two parts:One an integral part, the other – a proper fraction.The integral part is called the Characteristic and the fractional or the decimal part is called the Mantissa.For example, log 10 15 = 1.176 = 1 + 0.176.

Answer 2

Suppose, log 39.2 = 1.5933, then 1 is the characteristic and 5933 is the mantissa of the logarithm. If log .009423 = - 3 + .9742, then - 3 is the characteristic and .9742 is the mantissa of the logarithm. Since log 3 = 0.4771 and log 10 = 1, so the characteristic of log 3 is 0 and the mantissa of log 10 is 0.