Near enough the exact value of the number. Logarithms, for positive numbers, have are invertible.
mantissa
27.9 IS a decimal number. You can tell it is a decimal number because it has a decimal point (.).
A logarithm is the exponent to which a number called a base is raised to become a different specific number. A common logarithm uses 10 as the base and a natural logarithm uses the number e (approximately 2.71828) as the base.
When a decimal can't be expressed as a fraction then it is an irrational number.
That is a logarithm to the base "e", where "e" is a number that is approximately 2.718.
A number for which a given logarithm stands is the result that the logarithm function yields when applied to a specific base and value. For example, in the equation log(base 2) 8 = 3, the number for which the logarithm stands is 8.
It tells you the value (and sign) of the number.
The decimal part of a logarithm, as distinguished from the integral part, or characteristic.
An antilogarithm is the number of which the given number is the logarithm (to a given base). If x is the logarithm of y, then y is the antilogarithm of x.
Usually, but not necessarily. A logarithm that is not an integer-value is irrational. For example log10100 = 2 which is a rational number. log1012 = 1.0791812460476... which is an irrational number.
The "base of the natural logarithm" is the number known as "e". It is approximately 2.718.
To create a logarithm table, start by selecting a base for the logarithm, commonly base 10 (common logarithm) or base e (natural logarithm). Calculate the logarithm values for a range of numbers, typically from 1 to 100, using the logarithm formula or a calculator. Record these values in a table format, listing the numbers in one column and their corresponding logarithm values in the adjacent column. Ensure to include necessary decimal places for accuracy and consider adding interpolation for non-integer values.