The **`log10()` function** in Ruby returns the logarithm of a number using base 10.

Figure 1 shows the mathematical representation of the `log10()` function.

# Syntax
```ruby
log10(number)
```
# Parameter
This function requires a number whose logarithm base 10 is to be calculated, and it must be greater than zero.

# Return value
`log10()` uses base 10 to return the logarithm of a number.


# Example


#example
print "log10(10) : ", Math.log10(10), "\n"

print "log10(2) : ", Math.log10(2), "\n"

#error
print "log10(0) : ", Math.log10(0), "\n"


What is Math.log10() in Ruby?

Returns base 10 logarithm of a number (>0) in Ruby.