The log10 function returns the common (base-10) logarithm function.

Syntax ​

log10( X )

Arguments ​

• X: A real number greater than 0.

Results ​

• The common logarithm is the base-10 logarithm: the inverse of the exponential function (exp) with base 10.
• null if the argument is negative or null or can’t be converted to a real value.

Examples ​

This returns 4:

print log10( 10000 )