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Resolve 'TeX capacity exceeded (input stack size=10000)' in LaTeX TikZ when inputting complex graphics from external files with fonts and paths. Use TikZ scope to avoid nested tikzpicture and pgf@selectfontorig recursion while preserving all elements.

Learn how to add line breaks in markdown presentations with the TeX ewline equivalent. Discover the two-space method, HTML `<br>` tags, and backslash approach for different presentation frameworks.