Method: RDF::Literal::Numeric#log

Defined in:

lib/rdf/model/literal/numeric.rb

#log ⇒ Double

Returns the natural logarithm of the argument.

Returns:

• (Double)

See Also:

• https://www.w3.org/TR/xpath-functions/#func-math-log

Since:

• 0.3.0

# File 'lib/rdf/model/literal/numeric.rb', line 267

def log
  Double.new(Math.log(self.to_f))
rescue Math::DomainError
  Double.new(::Float::NAN)
end