神奇計算

god.ipynb

要移除指定的 index
可以使用 np.delete

U = np.zeros((N,N))
for i in range(N):
    lambda_D = np.delete(w, i)
    denominator = np.prod(w[i]-lambda_D)
    for j in range(N):
        M = np.delete(A1, j, 0)
        M = np.delete(M, j, 1)
        w2, v2 = np.linalg.eig(M)
        fraction = np.prod(w[i]-w2)
        U[j,i] = fraction/denominator

要移除指定的 index
可以使用 np.delete

U = np.zeros((N,N))
for i in range(N):
    lambda_D = np.delete(w, i)
    denominator = np.prod(w[i]-lambda_D)
    for j in range(N):
        M = np.delete(A1, j, 0)
        M = np.delete(M, j, 1)
        w2, v2 = np.linalg.eig(M)
        fraction = np.prod(w[i]-w2)
        U[j,i] = fraction/denominator

感謝！這個更加簡潔好讀