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<http://webisa.webdatacommons.org/198605560>	<http://www.w3.org/ns/prov#value>	"Patent US5570310 - Method and data processor for finding a logarithm of a number - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsA data processor and method are used to find logp (x) wherein p is a numerical base and x is a floating point value." .