The 'log10' function returns the base-10 logarithm value.
double @log10(double d);
Parameters
double d : value
that you want to calculate
Return Value
base-10 logarithm value
Example
val = @log(9000);
Description : The base-10 logarithm of '9000' is stored in the variable named 'val'. (val = 3.954243)
Reference