Hello, i've updated my published worksheet from above. To clearify this, the polyfit is actually numpy's and the glm (generalized linear model) is from R. Sage just enables you to use both of them (more or less seamless). I don't know any chemical problems, i've just some background in experimental physics, but i think at least this example is quite good for beginners to understand what to do. Do you know the actual formula for this process? the log was just a guess based on the data, but it would be cool to get the real thing and guess the correct parameters. What I really want to say, it would be really beneficial to sage and new users to have these examples documented online somewhere. Would you be interested in writing some sort of introduction like, "chemical engineering with sage"? (If you provide the examples, I can help)
Harald On Fri, Jan 16, 2009 at 04:44, Steve Yarbro <sntventu...@gmail.com> wrote: > Thanks for the great example. The fit is much better. I've been working > problems from Cutlip and Shacham, "Problem Solving in Chemical Engineering > with Numerical Methods". They have worked 10 selected problems with > Polymath, MATLAB, Mathematica, Maple and Excel. I've been working the same > set with Sage. For this problem, 1.3, the first attempt was using the > polyfit function in MATLAB. I was using the Sage polyfit for comparison. > The log fit is much better. Thanks for the example, it helps alot. > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
