• Wolfram MathWorld
• Famous Curves (Fermat's spiral, Conchoid of de Sluze, Cassinian ovals, etc.; University_of_St_Andrews,_Scotland)
• AMS (American Mathematical Society)
• Constants (from Mathsoft)
  • Number Theory
  • Well-known
  • Analytic Inequalities
  • Approximation of Functions
  • Discrete Structure
  • Functional Iteration
  • Complex Analysis
  • Geometry
• Integrals
  • Table of Integrals (Wikipedia)
  • Table of Integrals
  • The Wolfram Integrator
  • Definite Integrals (Wolfram)
• Wavelets
  • An Introduction to Wavelets (IEEE)
  • Wavelet Resources
  • Wavelet Digest (Swiss Federal Institute of Technology Lausanne)
• Online Books
  • Encyclopaedia of Mathematics (Springer Verlag)
  • Downloadable Abromowitz and Stegun
• Additional Web sites
  • Mathsoft Links to Math Sites

These sources may "dry up". Please e-mail, if you are having difficulties reaching a particular site.