TikZ/PGFPlots causing infinite compilation loops in XeLaTeX builds

[nipunbatra]

Problem

Complex TikZ plots with and contour plots are causing infinite compilation loops when building with XeLaTeX, particularly in coordinate-descent.tex.

Examples of Problematic Code

• Surface plots with
• Contour plots with
• Complex mathematical expressions in 3D plots
• commands with complex formulas

Impact

• Builds hang indefinitely
• Prevents successful compilation of slides
• Blocks automated build processes

Temporary Solution

Currently using simplified slides without complex TikZ plots as workaround.

Proposed Solutions

1. Replace TikZ plots with pre-generated images
2. Use simpler TikZ syntax that's XeLaTeX-compatible
3. Investigate pgfplots compatibility with XeLaTeX
4. Consider alternative plotting libraries

Files Affected

• (backup contains original problematic code)
• Any other slides with complex 3D TikZ plots

Priority

Medium - affects slide visual quality but workaround exists