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| I'm trying to specify rules for my plot, but they seem to be ignored by Mathematica: GeoRegionValuePlot[{ Entity["AdministrativeDivision", {"Arkansas", "UnitedStates"}] -> 1, Entity["AdministrativeDivision", {"California",... |
| I have a list of strings of the form list={str1,str2,strx,str3,...,str10} each string contains both letters and numbers, except for strx which does not contain numbers, what I want to do is attach strx to the element that immediately... |
| Nevermind, just realized Mathematica can handle Table[f[x,y],{x,1,T},{y,1,Min[x,K]}] |
| Thanks Frank, what does that mean? The system has no solution (at least with the restriction that the values must lie in [0,200])? If you think about it, it must have a solution given that it can be viewed as a system of recursive equations with... |
| Hi, I'm trying to solve the system $$ \begin{align*} &V(m)=\alpha + \beta V(m+1)+\beta \sum_{f=1}^4 Z(m+1,f)\\ &U(f)=\gamma +\beta U(f+1)+\beta \sum_{m=1}^4 Z(m,f+1)\\ &Z(m,f)=\zeta + \beta (Z(m+1,f+1)+U(f+1)+V(m+1))\\ ... |
| Hi, I was wondering if I can improve on this method for solving a particular system of coupled recurrence equations. I have attached a pdf file with the system of equations and a notebook file with the solutions. Notice that I have to solve for... |
| I'm in Canada, got the email notifying me of the updated site licence a few hours ago. However we got 10.0.2 about 6 or 7 days later, I had to download a trial to satiate my curiosity! |
| Hey Marco, I saw you profile and it seems that you also work with data. I have used Mathematica since version 4 for symbolics and for simple data analysis using matrices but now I feel outdated with respect of these new objects that Mathematica has... |
| You can write the time subscripts as arguments, i.e. type p[t], p[t+1], etc. As for other subscripts, you can just type y1, y2. One more thing, you have to either write the expressions in different cells or separate them using semicolons instead... |
| Hi, I'm trying to define the derivative of a function H to be positive. I'm using H/:Positive[H'[x]]=True But I get the error TagSetDelayed::tagpos: Tag H in Positive[H'[x]] is too deep for an assigned rule to be found. I also... |