Wolfram Language & System 10.0 (2014)|Legacy Documentation

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Log

Log[z]
gives the natural logarithm of z (logarithm to base ).

Log[b,z]
gives the logarithm to base b.

DetailsDetails

  • Log is a mathematical function, suitable for both symbolic and numerical manipulation.
  • Log gives exact rational number results when possible.
  • For certain special arguments, Log automatically evaluates to exact values.
  • Log can be evaluated to arbitrary numerical precision.
  • Log automatically threads over lists.
  • Log[z] has a branch cut discontinuity in the complex z plane running from to .
Introduced in 1988
(1.0)