# What does log10 mean in C?

## What does log10 mean in C?

Common Logarithm
In the C Programming Language, the log10 function returns the logarithm of x to the base of 10.

## What does log to the base 10 mean?

Log base 10, also known as the common logarithm or decadic logarithm, is the logarithm to the base 10. The common logarithm of x is the power to which the number 10 must be raised to obtain the value x. For example, the common logarithm of 10 is 1, the common logarithm of 100 is 2 and the common logarithm of 1000 is 3.

## What is a base 10 log called?

the common logarithm
In mathematics, the common logarithm is the logarithm with base 10. It is also known as the decadic logarithm and as the decimal logarithm, named after its base, or Briggsian logarithm, after Henry Briggs, an English mathematician who pioneered its use, as well as standard logarithm.

In the C Programming Language, the log function returns the logarithm of x to the base of e.

1. Syntax. The syntax for the log function in the C Language is: double log(double x);
2. Returns. The log function returns the logarithm of x to the base of e.
4. Applies To.
5. log Example.
6. Similar Functions.

## How does the LOG10 function work?

The Excel LOG10 function returns the base 10 logarithm of a number. For example, LOG10(100) returns 2, and LOG10(1000) returns 3. number – Number for which you want the logarithm.

## How do I get LOG10 in C++?

The log10() function in C++ returns the common logarithm (base 10 logarithm) of the argument. This function is defined in header file….log10() Return Value.

Parameter (x) Return VALUE
x = 1 0
0 > x > 1 Negative
x = 0 -∞ (- infinity)
x < 0 nan (Not a Number)

## Is log always base 10?

The base-10, or “common”, log is popular for historical reasons, and is usually written as “log(x)”. If a log has no base written, you should generally (in algebra classes) assume that the base is 10. The other important log is the “natural”, or base-e, log, denoted as “ln(x)” and usually pronounced as “ell-enn-of-x”.

## Is log and log10 the same thing?

Usually log(x) means the base 10 logarithm; it can, also be written as log10(x) . log10(x) tells you what power you must raise 10 to obtain the number x. 10x is its inverse. ln(x) means the base e logarithm; it can, also be written as loge(x) .

## How do I use LOG10?

Excel LOG10 Function

1. Summary. The Excel LOG10 function returns the base 10 logarithm of a number.
2. Get the base-10 logarithm of a number.
3. The logarithm.
4. =LOG10 (number)
5. number – Number for which you want the logarithm.
6. The LOG function allows you to get the base 10 logarithm of a positive number. For example:

## What is the log10 function in C language?

C Language: log10 function. (Common Logarithm) In the C Programming Language, the log10 function returns the logarithm of x to the base of 10. The syntax for the log10 function in the C Language is: double log10(double x);

## What is the difference between log and log10?

The C function log is the natural logarithm, which mathematicians usually write as “ln”. The C function log10 is the logarithm base 10, which is sometimes written “log”. n. 1.8e9-where’s-my-share m. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research!

## What are the Overloads of the function log10?

This function is overloaded in and (see complex log10 and valarray log10 ). Additional overloads are provided in this header ( ) for the integral types: These overloads effectively cast x to a double before calculations. This function is also overloaded in and (see complex log10 and valarray log10 ).

## What is the function that returns the common log of X?

Returns the common (base-10) logarithm of x. Header provides a type-generic macro version of this function. This function is overloaded in and (see complex log10 and valarray log10 ).