Miscellaneous mathematics features (amsmath package)

• Matrices
• Math spacing commands
• Over and under arrows
• Dots
• Nonbreaking dashes
• Accents in math
• Roots
• Boxed formulas
• Extensible arrows
• Affixing symbols to other symbols
• Fractions and related constructions
  • Disallowing primitive / fraction commands
  • The frac, dfrac, and tfrac commands
  • The binom, dbinom, and tbinom commands
  • The genfrac command
• Continued fractions
• Smash options
• Delimiters
  • Delimiter sizes
  • Vertical bar notations