File:The cardinal hyperbolic cotangent function cothc(z) plotted in the complex plane from -2-2i to 2+2i.svg
![File:The cardinal hyperbolic cotangent function cothc(z) plotted in the complex plane from -2-2i to 2+2i.svg](https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/The_cardinal_hyperbolic_cotangent_function_cothc%28z%29_plotted_in_the_complex_plane_from_-2-2i_to_2%2B2i.svg/614px-The_cardinal_hyperbolic_cotangent_function_cothc%28z%29_plotted_in_the_complex_plane_from_-2-2i_to_2%2B2i.svg.png?20220908015757)
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