How to properly round numpy float arrays

Question

I have some sort of rounding issue when rounding floats.

x = np.array([[1.234793487329877,2.37432987432],[1.348732847,8437.328737874]])
np.round(x,2)

array([[  1.23000000e+00,   2.37000000e+00],
       [  1.35000000e+00,   8.43733000e+03]])

Is there a way to display these numbers without the zero extensions?

Answer 1

几乎不需要舍入浮点数（除非您想对它们进行存储，否则您的代码就可以正常工作），如果您只想以较低的精度打印它们，请使用以下命令：

print(np.array_str(x, precision=2))