from math import *
print('Введите размерность матрицы')
n = int(input())
print('Введите eps')
eps = float(input())

A = [0 for _ in range(n)]
T = [ [0 for i in range(n)] for j in range(n)]
for i in range(n):
    T[i][i] = 1
for i in range(n):
    print('Введите %d строку матрицы' % i+1)
    line = list(map(float,input().split()))
    A[i] = line

def getIndexOfMaxElement():
    pre = 0
    ans = 0,0
    for i in range(n):
        for j in range(n):
            if i==j:
                continue
            if pre<abs(A[i][j]):
                pre = abs(A[i][j])
                ans = i,j
    return i,j
def getPhi(i,j):
    if A[i][i]==A[j][j]:
        return 0.5**0.5
    return 0.5 * atan(2*A[i][j]/(A[i][i]-A[j][j]))

def updateA:

def updateT:

def getLyambda():
    for i in range(itr):
        l,k = getIndexOfMaxElement()
        if abs(A[l][k]) < eps:
            break
        phi = getPhi(l,k)