page_title: Napierian logarithm
hierarchical_section_title: Napierian logarithm
caption_attribution_description: English: I made this myself, and release it into the public domain.
context_page_description: The term Napierian logarithm or Naperian logarithm, named after John Napier, is often used to mean the natural logarithm. Napier did not introduce this natural logarithmic function, although it is named after him. However, if it is taken to mean the "logarithms" as originally produced by Napier, it is a function given by:
  The Napierian logarithm satisfies identities quite similar to the modern logarithm, such as
  or
context_section_description: The term Napierian logarithm or Naperian logarithm, named after John Napier, is often used to mean the natural logarithm. Napier did not introduce this natural logarithmic function, although it is named after him. However, if it is taken to mean the "logarithms" as originally produced by Napier, it is a function given by (in terms of the modern natural logarithm): 
  The Napierian logarithm satisfies identities quite similar to the modern logarithm, such as
  or
caption: A plot of the Napierian logarithm for inputs between 0 and 108.
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