» Behavioural Calculus    Offers a range of functionality, including a scientific calculator, function plotting in two and three dimensions, and problem solving. Screen-shots and details of features. Commercial, but free demo version available to download.    http://www.orfeobernardo.com/bc/

» Calculus Applets at St. Louis University    Provides applets demonstrating concepts of both single and multivariable calculus.    http://www.slu.edu/classes/maymk/MathApplets-SLU.html

» Calculus Made Easy for the Ti89/Titanium/Ti-92+/Voyage200    Collection of subprograms and menus that will help the user solve calculus problems and recall useful theorems, definitions, and rules.    http://www.islands.vi/~shawn/ti_89.htm

» Calculus Problem Solver    A calculus tutorial software that can solve differentiation problems and generate step-by-step solutions. Tests differentiation skills by generating dynamic quizzes.    http://www.runiter.org/calculus.htm

» GraphFunc    A program online that is used to plot the graph of mathematical functions in two or three dimensions. [Java required]    http://graph.seriesmathstudy.com/

» SID2002 Math Expert System    Solves problems and shows step by step solution using artificial intelligence.    http://www.geocities.com/ashtry_sid2002/

» SymPy    A Python library for symbolic mathematics.    http://code.google.com/p/sympy/

» Topics in Integral and Differential Calculus    Contains several applets illustrating fundamental concepts of single-variable calculus.    http://www.ma.utexas.edu/calculus/

» Wolfram Mathematica Online Integrator    Allows users to enter an integrand in order to return the indefinite integral.    http://integrals.wolfram.com/index.jsp