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kevin.w
07/10/13 05:51am

Hi all
I have the results from NDSolve, and it is in the form of ``list of rules''

In[157]:= SS =
NSolve[DA == 0 && DB == 0 && DC == 0 && DD == 0, {A, B, C, D}]

Out[157]= {{A -> 46437., B -> 25091.7, C -> 96620.4,
D -> 13557.5}, {A -> -217685., B -> 161155., C -> 104625.,
D -> -119304.}, {A -> -0.278772, B -> 0.351899, C -> 0.425027,
D -> 0.818112}, {A -> 0.492067, B -> -0.439226, C -> -0.386384,
D -> 1.28467}, {A -> 0.125003, B -> 1., C -> 0., D -> 0.}}




I want to turn this ``list of rules'' into a matrix of numerical values, i.e. a matrix like this:

{{46437., 25091.7, 96620.4, 13557.5}, {-217685., 161155.,
104625., -119304.}, {-0.278772, 0.351899, 0.425027,
0.818112}, {0.492067, -0.439226, -0.386384, 1.28467}, {0.125003, 1.,
0., 0.}}

Could someone teach me how to do this? Thanks a lot!

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Subject (listing for 'Convert list of rules to matrix')
Author Date Posted
Convert list of rules to matrix kevin.w 07/10/13 05:51am
Re: Convert list of rules to matrix Bill Simpson 07/10/13 12:13pm
Re: Convert list of rules to matrix Peter Pein 07/11/13 07:36am
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