CAS ? Home issues?

[toshk]

inverse matrix;
in CAS; [undef] Home; correct ans;
[[(1/2585000000000)*((e^(1/517))^15034+(e^(1/517))^1551),(-1/2585000000000)*e^3,0,(-1/2585000000000)*e^(15034/517),1],[(-1/2585000000000)*e^3,(1/2585000000000)*(e^3+1292500000),-1/2000,0,0],[0,-1/2000,3/2000,-1/2000,0],[(-1/2585000000000)*e^(15034/517),0,-1/2000,(1/2585000000000)*(e^(15034/517)+1292500000),0],[1,0,0,0,0]]^(-1)


also seen issues with LSQ function as well in CAS;