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seen Nov 25 '12 at 20:00

Jul
2
awarded  Curious
Nov
23
awarded  Benefactor
Nov
23
accepted How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
Nov
22
comment How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
1) What is $d$? 2) There is no bc on $v_2(0)= 0$ so how can we get a solution for $v_2(s)=eq$ and not $eq + const$ so there are more unknowns thn equations amnd we will not be capable to solve the system? 3) why we take only last 3 equations?
Nov
21
revised How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
added 153 characters in body
Nov
21
comment How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
Does the fact of $v_4$ and $v_6$ make it not an ODE? Isnt it possible to get $v_4$ and $v_6$ out from given vs? make them depand on other vs?
Nov
21
comment How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
boundary conditions are correct.
Nov
20
awarded  Promoter
Nov
19
revised How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
edited title
Nov
18
revised How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
added 81 characters in body
Nov
18
asked How to numerically solve such differential system (ODE, Nonstationary, Nonhomogeneous) (what steps to take)?
Dec
31
accepted How to describe foсi of en ellipse inscribed in the triangle thru triangles angles points?
Dec
31
asked How to describe foсi of en ellipse inscribed in the triangle thru triangles angles points?
Dec
29
revised Is correcting 2 consecutive error's in 9 messages from $ GF(2^6) $ by turning tham into 3 messages and solving Reed-Solomon code $ (3, 18) $ possible?
deleted 1 characters in body
Dec
29
revised Is correcting 2 consecutive error's in 9 messages from $ GF(2^6) $ by turning tham into 3 messages and solving Reed-Solomon code $ (3, 18) $ possible?
edited tags
Dec
28
revised Is correcting 2 consecutive error's in 9 messages from $ GF(2^6) $ by turning tham into 3 messages and solving Reed-Solomon code $ (3, 18) $ possible?
added 1925 characters in body
Dec
28
comment Is correcting 2 consecutive error's in 9 messages from $ GF(2^6) $ by turning tham into 3 messages and solving Reed-Solomon code $ (3, 18) $ possible?
*(book talls me that errors shall be located at $6$ and $7$th symbols (as you seem to call them) so $\alpha^5$ would seem to be somewhat the thing I shall need... but sadly I do not get $ \alpha^5 $ in $\dfrac{S(\alpha^2)}{S(\alpha)}$)
Dec
28
comment Is correcting 2 consecutive error's in 9 messages from $ GF(2^6) $ by turning tham into 3 messages and solving Reed-Solomon code $ (3, 18) $ possible?
So... for me $ S(1) $ not $ = S(\alpha) $ not $ = S(\alpha^2) $ not $ =0 $ 1) are you sure that $ \dfrac{S(\alpha)}{S(1)} $ shall be $=$ to $ \dfrac{S(\alpha^2)}{S(\alpha)} $ and $=$ to $ \alpha^{i_0} $? I get $ \alpha^5 $ in $ \dfrac{S(\alpha)}{S(1)} $ and $ \alpha^5+\alpha^4+\alpha $ on $ \dfrac{S(\alpha^2)}{S(\alpha)} $... 2) I cant get anething out from BruteForce *(all combinations of $ S(\alpha^2) + [(1+\alpha)S(\alpha)]x + [\alpha S(1)]x^2 $ are not NULL =( So what shall I do?
Dec
22
accepted Is correcting 2 consecutive error's in 9 messages from $ GF(2^6) $ by turning tham into 3 messages and solving Reed-Solomon code $ (3, 18) $ possible?
Dec
22
comment Maple: Galois Field with characteristic 2 GF(2m) - how to solve systems?
correct in general but not for GF package of maple... any way this is what I do not get... nor in general nor in how to do it with maple...