Re: Creating Matrix from vectors specific issue.

*To*: mathgroup at smc.vnet.net*Subject*: [mg100780] Re: [mg100745] Creating Matrix from vectors specific issue.*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Sat, 13 Jun 2009 06:06:32 -0400 (EDT)*Reply-to*: hanlonr at cox.net

a = Map[List, Array[s, {3, 5}], {2}] {{{s[1, 1]}, {s[1, 2]}, {s[1, 3]}, {s[1, 4]}, {s[1, 5]}}, {{s[2, 1]}, {s[2, 2]}, {s[2, 3]}, {s[2, 4]}, {s[2, 5]}}, {{s[3, 1]}, {s[3, 2]}, {s[3, 3]}, {s[3, 4]}, {s[3, 5]}}} Transpose[Apply[Sequence, a, {2}]] {{s[1, 1], s[2, 1], s[3, 1]}, {s[1, 2], s[2, 2], s[3, 2]}, {s[1, 3], s[2, 3], s[3, 3]}, {s[1, 4], s[2, 4], s[3, 4]}, {s[1, 5], s[2, 5], s[3, 5]}} Bob Hanlon ---- Kinu <basukinjal at gmail.com> wrote: ============= Thanks to all who replied before My exact problem is as follows.. I am getting vectors from my program which is of the form v1 = {{1},{2},{3}}; v2 = {{4},{5},{6}}; BUT NOT v1 = {1,2,3} and v2 = {4,5,6} Now if i use A = {v1,v2} and then Transpose[A] i am getting the required matrix only in the 2nd case i.e when v1 = {1,2,3} and similarly v2. However when i use the same A = {v1,v2} in the 1st case and then Transpose[] i.e when v1 = {{1},{2},{3}} and similarly v2, i am not getting the required matrix. If anyone would help me with this specific point it will be helpful. I have also seen that the dimension in case 1 is {3,1} while that in case 2 is {3}. If there is any way to interchange the two .. that also will suffice. i.e if i can change {{1},{2},{3}} to {1,2,3} that will also suffice. Please help.