This article describes the formula syntax and usage of the LOG function, which returns the logarithm of a number to the base you specify.

Syntax LOG (number, [base]) The LOG function syntax has the following arguments: Number Required. The positive real number for which you want the logarithm. Base Optional. The base of the logarithm. …

Returns the logarithm of a number to the base you specify. Syntax LOG (number, base) Number is the positive real number for which you want the logarithm. Base is the base of the logarithm. If base is …

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Log Function Returns a Double specifying the natural logarithm of a number. Syntax Log (number⁠)⁠ The required number⁠ argument is a Double or any valid numeric expression greater than zero. Remarks …

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Returns the base-10 logarithm of a number. Syntax LOG10 (number) Number is the positive real number for which you want the base-10 logarithm. Examples

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