thanks for the answer but i want to solve the equation analytic not numeric 

thanks for the answer but i want to solve the equation analytic not numeric 

@Markiyan Hirnyk  I didn't get you'r aim. what do you mean? can you explain more?

@Markiyan Hirnyk  I didn't get you'r aim. what do you mean? can you explain more?

bestfitGRB2.mw @gkokovidis maple15

bestfitGRB2.mw@gkokovidis maple15

bestfitGRB2.mw@gkokovidis maple15

bestfitGRB2.mw@gkokovidis maple15

bestfitGRB2.mw @gkokovidis i'm using maple 15 and here's the code

bestfitGRB2.mw @gkokovidis i'm using maple 15 and here's the code

bestfitGRB2.mw @gkokovidis i'm using maple 15 and here's the code

bestfitGRB2.mw @gkokovidis i'm using maple 15 and here's the code

thank's a lot Kitonum

i have the same problem with this matrix and get the same error. is it singular too?

[0.146908817520000, 0.126649448272000, 0.131753388040000, 0.126520000616000, 0.118669294920000, 0.122045853648000],[0.122627087610000, 0.105716275246000, 0.109976613595000, 0.105608223263000, 0.0990551164350000, 0.101873582814000],[0.155350852650000, 0.133927289790000, 0.139324524675000, 0.133790403495000, 0.125488561275000, 0.129059152110000],[0.163792887780000, 0.141205131308000, 0.146895661310000, 0.141060806374000, 0.132307827630000, 0.136072450572000],[0.222713071110000, 0.191999963346000, 0.199737511845000, 0.191803721313000, 0.179902088685000, 0.185020935714000],[0.298865449860000, 0.257650595596000, 0.268033847470000, 0.257387252438000, 0.241416089310000, 0.248285225964000]