Puzzle: 
Hide: 
A mathematical joke is a form of humor which relies on aspects of mathematics or a stereotype of mathematicians. The humor may come from a pun, or from a double meaning of a mathematical term, or from a lay person's misunderstanding of a mathematical concept.
For this mathmetical joke, my little rat friend thought it'd be funny to combine calculus and linear algebra. Solve the equation below, where x is north, and y is the west coordinates to find out where the joke is.
Best of luck and Happy Caching!
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