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03-16-2005, 08:51 AM
| #1 |
| ......... Join Date: Nov 2002
Posts: 303
| Piecewise defined discontinuous functions in Mathematica I googled and found a solution here but it doesn't work. I've been editing the graphs with microsoft paint to make them look discontinuous but it is very time consuming, especially since I need to create so many graphs. Anyone have any experience with this? |
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03-16-2005, 09:02 AM
| #2 | |
| Registered User  Join Date: Jan 2002 Location: Northern Virginia/Washington DC Metropolitan Area
Posts: 2,870
| Did you try what was shown in that document at the bottom of page 9? Quote:
__________________ On two occasions I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question. --Charles Babbage, 1792-1871 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0 Last edited by hk_mp5kpdw; 03-16-2005 at 09:23 AM. | |
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03-16-2005, 09:04 AM
| #3 |
| ......... Join Date: Nov 2002
Posts: 303
| Yup it errors out  |
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03-16-2005, 09:23 AM
| #4 |
| Registered User Join Date: Jan 2002 Location: Northern Virginia/Washington DC Metropolitan Area
Posts: 2,870
| I remember that document also saying something about errors because of the domain being used for a particular function. Show us the function along with the command you are using to plot it.
__________________ On two occasions I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question. --Charles Babbage, 1792-1871 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0 |
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03-16-2005, 09:24 AM
| #5 |
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Posts: 303
| I tried to plot the same one they had there and it didn't work. |
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03-16-2005, 12:37 PM
| #6 |
| and the hat of marbles  Join Date: May 2002 Location: Lund, Sweden
Posts: 2,041
| Excatly what do you mean by "discontinuities actually show up"? I barely know any Mathematica but I just did this: Code: p1 := Plot[ x , {x, -1, 1}];
p2 := Plot[x + 2, {x, 1, 3}];
Show[p1, p2];
__________________ Last edited by Sang-drax : Tomorrow at 02:21 AM. Reason: Time travelling |
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03-16-2005, 01:24 PM
| #7 |
| ......... Join Date: Nov 2002
Posts: 303
| Thank you!  For some reason when I used the code in that pdf it did not work. Next time I should try rereading about the show function in the documentation. I still have to edit the graphs though because I want to indicate whether there is a hole in the graph at a certain point but that is no big deal I guess. |
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