I want to create 5x5 numpy array. Declaration looks like:
aa = np.array([[2.82842712, 2.23606798, 2.0, 2.23606798, 2.82842712],
[2.23606798, 1.41421356, 1.0, 1.41421356, 2.23606789],
[2.0, 1.0, 0.0, 1.0, 2.0],
[2.23606789, 1,41421356, 1.0, 1.41421356, 2.23606789],
[2.82842712, 2.23606789, 2.0, 2.23606798, 2.82842712]])
but when i check it's size is 5x1.
Printed in console array looks like:
MATRICE aa:
[[2.82842712, 2.23606798, 2.0, 2.23606798, 2.82842712]
[2.23606798, 1.41421356, 1.0, 1.41421356, 2.23606789]
[2.0, 1.0, 0.0, 1.0, 2.0]
[2.23606789, 1, 41421356, 1.0, 1.41421356, 2.23606789]
[2.82842712, 2.23606789, 2.0, 2.23606798, 2.82842712]]
Shape: (5,)
Does anyone see where I'm wrong?
You have six elements in the 4th line, [2.23606789, 1, 41421356, 1.0, 1.41421356, 2.23606789]
assuming is 1.41421356
change to this:
import numpy as np
aa = np.array([[2.82842712, 2.23606798, 2.0, 2.23606798, 2.82842712],
[2.23606798, 1.41421356, 1.0, 1.41421356, 2.23606789],
[2.0, 1.0, 0.0, 1.0, 2.0],
[2.23606789, 1.41421356, 1.0, 1.41421356, 2.23606789],
[2.82842712, 2.23606789, 2.0, 2.23606798, 2.82842712]])
print(aa.shape)
Output
(5, 5)
As @FHTMitchell mentioned numpy only auto-converts rectangular matrices.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.