Example 25: Natural Logarithm Series

Learn how to print a logarithmic series.


The natural logarithm can be approximated by the following series.

x1x+12(x1x)2+13(x1x)3+14(x1x)4+....\frac{x-1}{x} + \frac{1}{2}(\frac{x-1}{x})^{2}+ \frac{1}{3}(\frac{x-1}{x})^{3}+\frac{1}{4}(\frac{x-1}{x})^{4}+....

If x is an input to a function, write a program to calculate the sum of this series’s first seven terms.


Input Output
3 1.086367
2 0.692262
0 -1
-10 -1

Try it yourself

Try to solve this question on your own in the code widget below. If you get stuck, you can always refer to the solution provided.

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