File:AsymptoticExpansionE1.png
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![File:AsymptoticExpansionE1.png](https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/AsymptoticExpansionE1.png/600px-AsymptoticExpansionE1.png?20080204113026)
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[edit]DescriptionAsymptoticExpansionE1.png |
Divergence of the asymptotic series for the w:Exponential integral The function gives the first N terms of an approximation to The relative error is plotted versus |
Date | |
Source | Own work |
Author | Domitori |
Permission (Reusing this file) |
Use it please. It is free. The first formula is smooth, you can expand it and do what you like. Enjoy! |
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[edit]Public domainPublic domainfalsefalse |
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Annotations InfoField | This image is annotated: View the annotations at Commons |
442
485
146
31
1110
1110
N = 1
124
655
68
237
1110
1110
N = 5
115
135
56
122
1110
1110
N = 4
120
266
59
46
1110
1110
N = 2
150
485
91
74
1110
1110
N = 3
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current | 11:30, 4 February 2008 | ![]() | 1,110 × 1,110 (49 KB) | Domitori (talk | contribs) | {{Information |Description=Divergence of the asymptotic series for the w:Exponential integral :<math>{\rm E}_1(z) = \int_1^\infty \frac{e^{-tz}}{t}\, dt,\qquad \Re(z) \ge 0~~.</math> The fincitons :<math> E_1(z,N)= \frac{\exp(-z)}{z} \sum_{n=0}^{N-1 |
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