Change the function f(z). Example: 1/z[br][br][b]Remark:[/b] Now you can use the complex constant [b]i[/b]. Example: z*i or i*z.

Other functions to try:[br][list][*](z-1)/(z^2+z+1)[/*][*]exp(1/z)[/*][*]z^3-1[/*][*](1-cos(z))/z^2[/*][*]ln(z)[/*][/list]