pudding
Member level 2
Hi guys,
I need help regarding moment of method. At the last step, I already got the mattrix for a homogenous equation group. And by setting the determinant to be zero, I can get the unkowns, such as the phase constant. My questions is, for a high order equation ( The number of the basis function is large), I get a lot of zeros. I don't know how to choose. Is that normal or including error? And by the way, I plot the determinant according to the unknowns, but the value goes very high(10^300) at the poles, which make it very difficult to pick up the zeros. Does anyone know how to do that or any good books about it? Thanks
pudding
I need help regarding moment of method. At the last step, I already got the mattrix for a homogenous equation group. And by setting the determinant to be zero, I can get the unkowns, such as the phase constant. My questions is, for a high order equation ( The number of the basis function is large), I get a lot of zeros. I don't know how to choose. Is that normal or including error? And by the way, I plot the determinant according to the unknowns, but the value goes very high(10^300) at the poles, which make it very difficult to pick up the zeros. Does anyone know how to do that or any good books about it? Thanks
pudding