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Re: derivative of matrix in mathematica
*To*: mathgroup at smc.vnet.net
*Subject*: [mg120149] Re: derivative of matrix in mathematica
*From*: "W. Craig Carter" <ccarter at mit.edu>
*Date*: Sun, 10 Jul 2011 05:00:33 -0400 (EDT)
*References*: <201107091132.HAA13492@smc.vnet.net>
Hello Yashar,
Here is an example:
5x5 where each element is a function of t
fiveByfive = Array[matrixFuncs[#1, #2][t] &, {5, 5}]
The derivative of the matrix with respect to t
fiveByfive = Array[matrixFuncs[#1, #2][t] &, {5, 5}]
I am not sure what you are asking for with your third question, but perhaps this gives you a direction:
anotherfiveByfive = Array[otherFuncs[#1, #2][t] &, {5, 5}]
Table[fiveByfive[[i, j]] == anotherfiveByfive[[i, j]], {i, 5}, {j, 5}]
On 9 Jul, 2011, at 7:32 AM, yashar wrote:
> hi
> in mathematica
> how i can produce a general n by n matrix so that each of its elements be a variable of t???
> how i can take derivative of this matrix with respect to variable t?
> how i can with equating this n by n matrix with another n by n matrix which its elements are known obtain unknown elements of this general n by n matrix?
>
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