diag函数是用于创建对角矩阵的函数。具体用法如下：创建对角矩阵：通过diag函数可以将一个向量作为输入，返回一个以该向量为对角线元素的对角矩阵。A = [1 2 3];B = diag(A);% 结果是：% B = % 1...

NumPy包中的内置diag函数很有意思。 假设创建一个1维数组a，和一个3*3数组b：import numpy as np a = np.arange(1, 4) b = np.arange(1, 10).reshape(3, 3)结果如...

文档解释ORA-19958: potential deadlock involving DIAG processCause: DIAG requested a control file operation that may lead to...

文档解释ORA-00485: DIAG process terminated with error stringCause: A global diagnostic process diedAction: Wait for process...