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| I once got a task from a professor when I was a graduate student to try and reproduce a figure in a book as best I could. Specifically, I had to reproduce the orbit of Mercury around the Sun. Simulating the orbit of Mercury was straight forward, but... |
| I have a 3D parametric plot: a = ((3.14*.0005) (1.887 - 1.792))/((.0001064)* Cos[-.7454*Sin[\[Theta]]*Cos[\[Phi]] + .6626*Cos[\[Theta]]]); b = (1 - Cos[.7454*Sin[\[Theta]]*Cos[\[Phi]] + .6626* Cos[\[Theta]]]^2)*(1... |
| a = ((3.14*.005) (1.887 - 1.792))/((.000522)* Cos[-.7454*Sin[\[Theta]]*Cos[\[Phi]] + .6626*Cos[\[Theta]]]); b = (1 - Cos[.7454*Sin[\[Theta]]*Cos[\[Phi]] + .6626* Cos[\[Theta]]]^2)*(1 - ... |
| I found this filter in a MatLab program: F2=H2./G2; for i=1:31 if G2(i,1)==0 F2(i,1)=0; end end It says that if any element between 1 and 31 in G2 is 0 (or very small that it's practically 0) then any element... |
| Over the pass few weeks, I've been using Mathematica to analyze signals for the purpose of low pass filtering. Mathematica indeed has a Low Pass Filtering program in it, but I thought why not do it by brute force. Doing it by brute force can give you... |
| I have taken a DFT of some data points I called "v" which was a 193 data points. a = Fourier[{v}, FourierParameters -> {1, 1}];The Fourier returned a 193 data points. As it turned out, I don't need all of them. In the output, how can... |
| I have a Discrete Fourier Transform of some data that I was given: [mcode]v = {0.000549316, 0.000518799, 0.000518799, 0.000549316, 0.000549316, 0.000579834, 0.000610352, 0.000640869, 0.000701904, 0.000793457, 0.000793457, 0.000793457,... |
| I have some data that I took the DFT of:[mcode]v = {0.000549316, 0.000518799, 0.000518799, 0.000549316, 0.000549316, 0.000579834, 0.000610352, 0.000640869, 0.000701904, 0.000793457, 0.000793457, 0.000793457, 0.000732422, 0.000732422, 0.000762939,... |
| Attached is some data that I was given that I'm told is the accoustic read out of a sperm whale. How can I tell Matheatica to take that data and do the a Fourier Transform with it. In other words, I want to do this:[mcode]Fourier[{Insert data... |
| I've been doing some experiemting with Mathematica into making interference patterns. The plotted interference patterns can't be seen all that well. I think the problem may be caused by (correct me if I'm wrong) aliasing. How can I get Mathematica to... |