def main():
    print("Insert the dimension of matrix")
    n = int(input())

    print("\nType of input\n")
    print("\t1 - File\n\t2 - Use formula")
    typ = int(input())

    A = np.zeros(shape=(n, n), dtype=np.float64)
    b = np.zeros(shape=(n, 1), dtype=np.float64)
    if typ == 1:
        print("\nEnter filename\n")
        filename = input()
        with open(filename) as f:
            for i in range(n):
                line = list(f.readline().split())
                for j, elem in enumerate(line[:n]):
                    A[i][j] = np.float64(elem)
                b[i][0] = np.float64(line[n])
    elif typ == 2:
        print("\nEnter parametr m\n")
        m = np.float64(input())
        for i in range(n):
            for j in range(n):
                if i == j:
                    A[i][j] = n + m ** 2 + j / m + i / n
                else:
                    A[i][j] = (i + j) / (m + n)
            b[i][0] = 200 + 50 * i
    print(A)
    print(b)
    print("\nChoose operation\n")
    print("\t1 - Find determinant\n\t2 - Find reverse matrix\n" +
           "\t3 - Find Gauss solution\n\t4 - Find Gauss solution with main element\n" +
           "\t5 - Find condition number")
    operation = int(input())
    for operation in range(1, 6):
        if operation == 1:
            print("detrminate = {0}".format(determinate(A))
        if operation == 2:
            print("reverse(A) = {0}".format(reverse(A)))
        if operation == 3:
            print("X = {0}".format(gauss(A, b)))
        if operation == 4:
            print("X = {0}".format(gauss_main_elem(A, b)))
        if operation == 5:
            print("cond = {0}".format(cond(A)))
        print("check: {0}\n".format(check(A, b, operation)))