Calculate the natural logarithm of a complex number.

`IMLN(inumber)`

- Numbers, text, logical values, arrays, error values, or cell references â€“ valid values for the argument
- Required argument

`=IMLN(2)`

The IMLN function returns the natural log of a number. To use the function, you can enter a number, complex number, or cell reference as the argument, returns the natural log of 2

`=IMLN(COMPLEX(1, -1))`

You can also use the COMPLEX function in the argument of IMLN, and returns the natural log of the complex number 1-i.

The IMLN function calculates the natural logarithm of a complex number, taking a complex number as an argument.

- The IMLN function can be used to calculate the natural logarithm of a complex number.

The IMLN function calculates the natural logarithm of a complex number.

The IMLN function takes a complex number as an argument.

The complex number must be formatted as x + yi or x + yj.

Use the COMPLEX function to convert real and imaginary coefficients into a complex number.

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