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based on an earlier version of the Wolfram Language.
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gives the base-10 logarithm of x.
  • Mathematical function, suitable for both symbolic and numerical manipulation.
  • Log10 gives exact rational number results when possible.
  • For certain special arguments, Log10 automatically evaluates to exact values.
  • Log10 can be evaluated to arbitrary numerical precision.
  • Log10 automatically threads over lists.
Click for copyable input
Click for copyable input
Click for copyable input
Evaluate for a complex argument:
Evaluate to arbitrary precision:
The precision of the output tracks the precision of the input:
Log10 threads element-wise over lists:
TraditionalForm formatting:
Find the real exponent of a nonzero number:
Evaluate the transform at a point:
Plot the spectrum:
Plot both the spectrum and the plot phase using color:
Plot the spectrum in the complex plane using ParametricPlot3D:
Simplify the logarithm with assumptions:
Solve logarithmic equations:
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