def insert_matrix():
str_range = input('Please insert the range of a square matrix: ')
Validation.is_valid_range(str_range)
while not Validation.is_valid_range(str_range):
str_range = input('Please insert a valid positive number, higher than 1: ')
mat_range = int(str_range)
matrix = []
for i in range(mat_range):
string_row = input('Insert row ' + str(i + 1) + ', with ' + str(mat_range) + ' numbers separated by comma: ')
float_row = get_row(string_row, mat_range)
while float_row is None:
string_row = input('Insert row ' + str(i + 1) + ', with ' + str(mat_range) +
' valid numbers separated by comma: ')
float_row = get_row(string_row, mat_range)
matrix.append(float_row)
return matrix
