Christopher Smith smichr

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smichr closed issue sympy/sympy#7070
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Missing eigenvalues
smichr commented on issue sympy/sympy#7070
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duplicates #6331

smichr commented on issue sympy/sympy#6331
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I wonder if this is related to #6288 . No. See #7070. >>> for i in [i.n(2) for i in m.charpoly().all_roots()]: print i # m is as defined in the O…

smichr commented on issue sympy/sympy#6288
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Matrices containing imaginary numbers appear to work now: >>> Matrix(2, 2, [1, 0, 0, I]).eigenvects() [(1, 1, [Matrix([ [1], [0]])]), (I, 1, [Matri…

smichr commented on issue sympy/sympy#7070
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The roots that could not be expressed as radicals are missing because roots does not return results unless they are "expressible via radicals." Whe…

smichr commented on issue sympy/sympy#7724
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There is another example of a 7th order unfactorable polynomial that gives no roots instead of RootOf instances at this SO issue

smichr commented on issue sympy/sympy#7789
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post the link to the commit The wording was changed in c340d4e

smichr commented on issue sympy/sympy#9286
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this test would be useless. The test that i > j is True could be true if i and j are ints: >>> (1>0) is True True >>> (S(1)>0) is True False >>> …

smichr commented on pull request sympy/sympy#9218
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I have no disagreement. Regarding the concern about static analysis not being able to work: is that still a concern after your other PR (that remov…

smichr commented on pull request sympy/sympy#9282
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+1

smichr pushed to quick at smichr/sympy
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smichr commented on pull request sympy/sympy#9282
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FYI: don't forget about the rage capability of symbols, too: A, B, C, D, E, F, G, H, I, J, K, L, M = symbols('A:M') N, O, P, Q, R, S, T, U, V, W, X…

smichr created repository smichr/datasciencecoursera
smichr commented on pull request sympy/sympy#9272
@smichr

should be 2947(#6046) yes, that's correct. So it should be fix_issue_6046.

smichr commented on pull request sympy/sympy#9212
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Looks a lot better to me. I am +1 for the PR.

smichr commented on pull request sympy/sympy#9218
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Should I modify the docstring I guess I would -- in my startup file I use from sympy.abc import *; from sympy import * but if you don't want to e…

smichr commented on pull request sympy/sympy#9225
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duplicates #9222

smichr closed pull request soapy1/CollisionTheorySim#2
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Update README.md
smichr closed pull request pelegm/sympy#1
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simplify _eval_* routines for genocchi
smichr closed pull request cbm755/sympy#2
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minor modifcation to meijerint
smichr commented on pull request sympy/sympy#9218
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accidentally type from sympy.abc import * I just follow that import with from sympy import * which restores default single letter SymPy definitio…

smichr commented on pull request sympy/sympy#9222
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+1

smichr commented on pull request sympy/sympy#9212
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To be properly typeset with sphinx I believe this has to be Examples (note plural) ======== (note blank) >>> ...

smichr commented on pull request sympy/sympy#9097
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be written as yes, I think that's better. And I believe the same could be done in mr

smichr commented on issue sympy/sympy#9172
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How about letting cse work with it first? >>> r,e=cse(sys) >>> ans=solve(e,manual=1,check=0,simplify=0) >>> print filldedent(ans) [{x0: -6*x6/5 - x…

smichr commented on issue sympy/sympy#9169
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I think you are citing the 2nd example as proof that the routine handles bad input. This is a very low level routine (which should actually be pri…

smichr commented on pull request sympy/sympy#9143
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Would it be appropriate yes - perhaps name it n since that is the parameter it represents. Alternatively you can just add Dummy to the import lin…