To find the logarithm of a number in PHP, you can use the built-in log function. The log function returns the natural logarithm of a number or the logarithm of a number to a specified base.
Here's an example code that calculates the natural logarithm of a number:
main.php136 chars4 lines
In the example above, the log function takes one argument - the number to find the logarithm of. It returns the natural logarithm of the number, which is then stored in the $log
variable. Finally, the value of $log
is printed to the screen using the echo
statement.
If you want to find the logarithm of a number to a different base than the natural logarithm, you can pass an optional second argument to the log function. For example:
main.php149 chars5 lines
In the example above, the log function takes two arguments - the number to find the logarithm of, and the base to find the logarithm in. It returns the logarithm of the number to the specified base, which is then stored in the $log
variable. Finally, the value of $log
is printed to the screen using the echo
statement.
gistlibby LogSnag