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The Wolfram|Alpha blog has published some information on plotting functions with Wolfram|Alpha. The plots come out quite nice whether 2D, 3D, or contour, and you don’t need to install any software to do some quick plots.
Plotting Functions and Graphs in Wolfram|AlphaMay 17, 2011Plotting functions in the Cartesian plane is such a simple task with Wolfram|Alpha: just enter the function you are looking to graph, and within seconds you will have a beautiful result. If you are feeling daring, enter a multivariate function, and the result will be a 3D Cartesian graph. Wolfram|Alpha is certainly not limited to Cartesian plotting; we have the functionality to make number lines, 2D and 3D polar plots, 2D and 3D parametric plots, 2D and 3D contour plots, implicit plots, log plots, log-linear plots, matrix plots, surface of revolution plots, region plots, list plots, pie charts, histograms, and more. Furthermore, in Wolfram|Alpha we can generate specialized plots for illustrating asymptotes, cusps, maxima, minima, inflection points, saddle points, solutions of ordinary differential equations, poles, eigenvalues, series expansions, definite integrals, 2D inequalities, interpolating polynomials, least-squares best fits, and more. Let’s take a look at the plotting functionality in Wolfram|Alpha, some of which is newly improved!We will start simple with 2D Cartesian plots.
Most of us professionals have pre-printed graph paper with the company logo and other things. Students usually have to buy their graph paper in bulk from their bookstore, Amazon.com, or somewhere else (probably online). When I was in school, we used a green engineering pad similar to this.
What happens when you’re in the middle of a homework assignment, and you just run out of graph paper only to realize you forgot to go to the bookstore before they closed, and your assignment is due tomorrow? (If you are running low, you may want to order a pad or two now while you are thinking about it.) What if you just need a few sheets to get you by, or if you need some grid pattern that you don’t usually use? One option is to print some yourself. It is quite easy–you don’t even have to draw it in AutoCAD or make it in Excel! All you have to do is go to incompetech’s website and print any custom grid pattern, type, and size for free as an instantly downloadable PDF.