Information on using Excel

One variable function plotter
Two variable function plotter

Examples of how to use Wolfram Alpha:

• Find derivative of x^2*log(x)--version 1
• Find derivative of x^2*log(x)--version 2
• (Partial) derivatives   (try clicking "Step-by-step solution")
• Least squares
• Combinations, permutations, factorial, etc.   (try clicking on specific examples)
• Mean, variance, standard deviation, etc.   (try clicking on specific examples)