uhci_hcd[101101.204071] usb 6-2: devicedescriptor read/64, error -71
[101101.420051] usb 6-2: new full-speed USB device number 19 using uhci_hcd[101101.540057] usb 6-2: devi
我的代码如下:y = linspace(-sqrt(2),sqrt(2),1000);surf(x,y,z)error: mesh: X, Y, Z arguments must be real.我理解这是因为一些(x,y)s会导致负6-2*x.^2-3*y.*2,但我不知道如何解决这个问题,因为我不能裁剪x或y的任何部分。有人能帮上忙吗?谢谢
Record 11457: Rejected - Error on table USAGE_DATA.ORA-12571: TNS:packet writer failure
SQL*Loader-2026: the load was aborted because SQL Loader cannot cont