logarithmic function

American  

noun

Mathematics.

1. a function defined by y = log bx, especially when the base, b, is equal to e, the base of natural logarithms.

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logarithmic function British  

noun

1. 1. the mathematical function y = log x

   2. a function that can be expressed in terms of this function

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Etymology

Origin of logarithmic function

First recorded in 1945–50

Example Sentences

When the base of the logarithm function is 10, we call it the common logarithmic function and the base is not shown.

From Textbooks • May 6, 2020

The logarithmic function with base e is called the natural logarithmic function.

From Textbooks • May 6, 2020

Using this change of base, we typically write a given exponential or logarithmic function in terms of the natural exponential and natural logarithmic functions.

From Textbooks • Mar. 30, 2016

Figure 4.74 A power function grows at a faster rate than a logarithmic function.

From Textbooks • Mar. 30, 2016

The current through this ball coherer is, therefore, a logarithmic function of the potential difference between its ends, of the form and exhibits no discontinuity.

From Hertzian Wave Wireless Telegraphy by Fleming, John Ambrose