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![{\displaystyle \sum _{k=1}^{\infty }{x^{k} \over k!}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/99025c99cb17dfaa4e0a5cdb7d8db9866496e0a9) | This user loves problem solving. |
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:-/ | This user is a sceptic, even with regard to this userbox. |
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![](//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Travel_problem.svg/42px-Travel_problem.svg.png) | This user knows how to travel 1 mile due south, due east, then due north and end up where they started.† |
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:-/ | This user is a sceptic, even with regard to this userbox. |
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