from numpy import *
import numpy as np

if __name__ == '__main__':
    str = '3.34'
    print(float(str))

    x = np.mat([[1.0, 2.1],
                [1.3, 1.0],
                [1.0, 1.0],
                [2.0, 1.0]
                ])
    print(x.T)
