MaplePrimes - answers and comments on Question, problem with dsolve command

singularity

Robert Israel — Tue, 23 Feb 2010 02:05:43 Z

Whether it's Fortran or C++ is not important, the question may be what method is being used. Without seeing your system, it may be hard to say what's happening. What does Maple's solution look like for, say, t = 2939.9? Do you seem to be getting very large values or very large derivatives? That could indicate that Maple is right that there is a singularity nearby. You might try using a different method, or changing some of the options relating to error control (see ?dsolve,Error_Control).

ImportData()

Scott03 — Tue, 18 May 2010 17:32:09 Z

Try using the ImportData() command that will launch the Import Data Assistant. This should help you load in the data provided it is one of the supported file types (Excel, Matlab, Image, Audio, Matrix Market, and Delimited). Once you have loaded the data into Maple you should be able to use either the Curve Fitting assistant or the commands to get the equation of the curve.

Scott

curve fitting

haider — Tue, 18 May 2010 11:12:17 Z

i have a data file generated using FORTRAN. The data file contains 4 columns and 800 rows. Iwant to fit a curve to my data (3rd and 4th column of the data file). what is the best way to fit this data using Maple. I have tried this using "curve fitting (Interactive)" on Maple, but that didnot help, the problem that i faced was in importing data in that case. any help or suggestion ????

hyder