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 Author Comment/Response Anton Siswo 03/24/13 01:15am Hello everyone here..... I have problem here, I have a matrix 16x24, lets call it matrix A. There is Matrix B 24x24 which depend on the reading row and column with values from Matrix A. Here are link for matrix A (also in attachment): https://docs.google.com/file/d/0B-dcMNCq0QF8OTdPMS1WRVNxb1k/edit?usp=sharing After that, I want to create matrix C, consist of matrix 150x150. The rule are below here: 1. Matrix C formed from matrix A. 2. Each row and column from matrix C are read the values from matrix A for each row, not the entire matrix. If there is no values from matrix A (based on the tables) from each row from matrix A, such as A[1,100] then the value in C[1,100] is 0. For examples, row and column in matrix C [49,50] are formed from matrix A, for 49 in [8,1];[7,10];[4,13];[3,22] and for 50 in [8,2];[7,11];[4,14];[3,23]. I'm already using Position command in mathematica. 3. After that, get the column value only from matrix C for 49 and 50. It should be like this, for 49-> 1,10,13,22 and for 50 -> 2,11,14,23. 4. When we already got the column value for 49 and 50, we are forming the value from point 3 into [1,2];[10,11];[13,14];[22,23]. this 4 new elements are taking the value from matrix B in B[1,2];B[10,11];B[13,14];B[22,23]. 5. After finished taking the value in matrix B, we sum it. So it should be sum of values from B[1,2] + B[10,11] + B[13,14] + B[22,23]. 6. When finished, we take the result in matrix C. So, it should be C[49,50] = value from B[1,2] + B[10,11] + B[13,14] + B[22,23]. 7. It goes along the way for matrix C starting from [1,1] until [150,150] using the rules before. So, my question is how to implement it in mathematica? I'va been stuck for a month, because of this algorithm. Thank you very much and I do sorry for my bad grammar. Attachment: MatrixAssembly.png, URL: ,

 Subject (listing for 'Help with creating matrix from another matrix') Author Date Posted Help with creating matrix from another matrix Anton Siswo 03/24/13 01:15am Re: Help with creating matrix from another matrix Bill Simpson 03/24/13 11:53pm Re: Re: Help with creating matrix from another ... Anton Siswo 03/25/13 11:35am Re: Re: Re: Help with creating matrix from anot... Bill Simpson 03/25/13 7:32pm Re: Re: Re: Help with creating matrix from anot... Bill Simpson 03/25/13 10:20pm Re: Re: Re: Re: Help with creating matrix from ... Anton Siswo 03/31/13 7:22pm Re: Re: Re: Re: Re: Help with creating matrix f... Bill Simpson 04/01/13 00:06am Re: Re: Re: Re: Re: Re: Help with creating matr... Anton Siswo 04/01/13 5:52pm Re: Re: Re: Re: Re: Help with creating matrix f... Bill Simpson 04/01/13 10:44am Re: Re: Re: Re: Re: Re: Help with creating matr... Anton Siswo 04/08/13 04:52am Re: Re: Re: Re: Re: Re: Re: Help with creating ... Bill Simpson 04/09/13 8:35pm Re: Re: Re: Re: Re: Re: Re: Re: Help with creat... Anton Siswo 04/11/13 10:58am Re: Re: Re: Re: Re: Re: Re: Help with creating ... Bill Simpson 04/09/13 9:54pm Re: Re: Re: Re: Re: Re: Re: Re: Help with creat... Anton Siswo 04/10/13 9:41pm Re: Re: Re: Re: Re: Re: Re: Re: Re: Help with c... Bill Simpson 04/12/13 00:35am Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Help wi... Anton Siswo 04/16/13 07:19am Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Hel... Bill Simpson 04/16/13 7:48pm Re: Help with creating matrix from another matrix Anton Siswo 03/26/13 11:29pm
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