User Portlet
| Discussions |
|---|
| Hello, I would like to understand a code which is a recursive function with this kind of structure f[x_, y_] := {f[x], f[y]}. This case is present in the XMLNote function used in the help for "Transforming XML". I have already spent time on the... |
| Hello, I would like to simplify an XMLObject by only retrieving the XMLElements with a specific tag. I would like a code based with the use of XMLElements as function. I try this code : XMLtest3 = Cases[XMLtest, _XMLElement,... |
| Hello, I would like to better understand the block function. First, is it a recursive function ? I have read the help but I didn't well understand the operation of this function. Here a an example where a Block function is used and that I... |
| Hello, I have a list of XMLElements. I would like to suppress those which have a name different from a specific name for example "YO". Here an example : XMLtest = {XMLElement["YO", {}, 2],XMLElement["BA", {}, 2]} Here my code ... |
| Hello, I would like to retrieve some labels in .xml file. This code `XmlData = Import["...", "XML"]` enables me to have access to a XMLObject. I would like to like to have now a display of the structure of my XMLObject, a but as it is... |
| Hello, I can obtain ?[t] as a solution of an ODE and plot it thanks to the following code s = NDSolve[{eqL?, ?[0] == .79, ?'[0] == 0}, ?, {t, 0, 2}] Plot[Evaluate[?[t] /. s], {t, 0, 2}, PlotRange -> All] I would like to obtain the... |
| Hello, I have a matrix M[3,3]. After a solve procedure, I obtained these results. {{M[1, 2] -> Cos[?[t]], M[1, 3] -> 0, M[2, 3] -> 0, Cos[?[t]] -> M[3, 1], M[3, 2] -> 0, M[3, 3] -> 1, M[2, 1] -> -Cos[?[t]] Sin[?[t]], M[2, 2] -> Sin[?[t]],... |
| Hello, Currently, I migrate my Maple Code to Mathematica code. On a part linked to linearization, I meet some difficulties. In fact, i try to linearize some differential equations around an equilibrium position. The linearization is made with... |
| Hello, Sorry if my question is not very scientific, I spend a moment to find how I can insert Mathematica inputs properly in a post and I still didn't find. **Can anyone tell me how I can do so as to insert Mathematica inputs ?** When I use... |
| Hello, I would like to linearize a differential equation around a equilibrium position. The description of the steps that I have carried out are : Equation eq = 1/2 g l m Cos[?[t]] == J (?^??)[t] Equation around the equilibrium... |