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For certain well-conditioned floating-point matrices with entries in ComplexField, echelon_form can return matrices which are not in (approximate) echelon_form. This breaks methods like rank(), ri…
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% System 1: First pair of equations
% -24 - 8x = 12y
% 1 + (5/9)y = -(7/18)x
% Rearranging to solve for y:
% From first equation: y = (-24 - 8x)/12
% From second equation: y = -(7/18)x - 9/5
x1 = -1…
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The following innocent code gives a TypeError:
```
e=random_matrix(ZZ,4,5,algorithm='echelon_form')
```
while I should have given:
```
e=random_matrix(ZZ,4,5,algorithm='echelon_form', num_pivots=3…
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* Basic Plan (14,99)
- [ ] Gestion Client
- [ ] facturation et devis
- [ ] Gestion d'emploi du temps
- [ ] Compte rendus et observations
- [ ] Comptabilité
- [ ] Synchro automatique de l'a…
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The proof of http://linear.ups.edu/html/section-RREF.html#theorem-RREFU is pretty long (and early in the course when students are anxious anyway).
A link to some sort of shorter argument like http://…
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**Feature Request:**
Is it possible to create an exception list to ignore specific Bluetooth devices/ID's from trying to connect to the virtual bridge? So in my case, I want to prevent the Echelon bi…
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**Describe the bug**
This past weekend, I upgraded my iPad to the newer model. https://www.apple.com/ipad-10.2/ I set the device up as a brand new iPad and installed QZ from Testflight. I set up QZ a…
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https://techcrunch.com/2021/05/14/echelon-leaky-api-riders-account-data/
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voir discussion dans #80
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In situations where dark background is set, the Echelon symbol can be hard to view/identify, can an option be added to apply a high contrast background for this case?