An example of an entire function, which is not polynomial, that has only one zero.

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I cannot find an example of an entire function $f$ (i.e. $f: \mathbb{C}\rightarrow\mathbb{C}$), which is not polynomial, that has only one zero. Besides these two, I had to find examples with no zeros and infinitely many, but I found them.

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You can take$$\begin{array}{ccc}\mathbb C&\longrightarrow&\mathbb C\\z&\mapsto&ze^z.\end{array}$$