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I am looking for a simple way to show that a number that I have entered in an InputField in a CDF is higher or lower than acceptible, and to make sure that in the CDF the entered number is not used for further calculations. The only result of...
I got date lists such as for instance {{16, 1, 4}, {16, 1, 5}, {16, 1, 6}}. How do I convert this list in an easy way to {{2016, 1, 4}, {2016, 1, 5}, {2016, 1, 6}} ?
How do I covert a list of dates with format {{3/8/2020}, {3/9/2020},{3/10/2020},.......} to a list with format {{2020,3,8},{2020,3,9},{2020,3,10},......}?
How do I find the positions of the elements in a list that are smaller (or greater) than both the previous and the next element in that list. So for instance, suppose I have the list data={2,4,1,3,4,5,3,2,1,5}. In this list the third and nineth...
Suppose I have the following list: list = {{-1, 4, -5, 6}, {-5, - 4, 3, 1}} Now I want to select only the negative elements of each sublist of this list. So I would like to get the following result: {{-1,-5},{-5,-4}}. I have tried GreaterThan[0]...
I am looking for a solution for a minor but annoying flaw in a program that I made for building a CDF for analysing the properties of accumulations of random numbers. In the CDF I can choose for several types of such accumulations through a number of...
I am no longer able to import data from a spreadsheet into Mathematica. A long time ago I used to do this from Microsoft Excel, but now I have Libre Office. I can still import files that I at the time made with Excel, but Libre Office calc files are...
I have tried to get historical PE-ratios with FinancialData like this: FinancialData["MSFT","PERatio",{2000,1,1} But with this I only get one value, i.e. the latest PE-ratio. I had expected a whole list of them. What do I do wrong?
Suppose one has the list {1,2,3,5,6,8,9,12,13} of which one wants to select the elements of which the dfference with the following element is greater than 1. One could find these elements with the following code: list = {1, 2, 3, 5, 6, 8, 9,...
Suppose I have a simple list, Range[4]. I apply a function to the members of this list, e.g. f[x_] = 1/x. With the following code I am getting what I expected In[125]:= f[x_] = 1/x; Range[4]; Map[f, Range[4]] Out[127]= {1, 1/2,...