[LeetCode&Python] Problem 867. Transpose Matrix Given a matrixA, return the transpose ofA. The transpose of a matrix is the matrix flipped over it's main diagonal, switching the row and column indices of the matrix. Example 1: Input:[[1,2,3],[4,5,6],[7,8,9]] Output:[[1,4,7...
代码语言:javascript 代码运行次数:0 deftranspose1(matrix):cols=len(matrix[0])return[[row[i]forrowinmatrix]foriinrange(0,cols)]deftranspose2(matrix):transposed=[]foriinrange(len(matrix[0])):transposed.append([row[i]forrowinmatrix])returntransposed deftranspose3(matrix):transposed=[]foriinrange...
# 创建一个10000x10000的大矩阵,数据在GPU上 large_matrix=cp.random.rand(10000,10000)# 计算矩阵的转置 transposed_matrix=cp.transpose(large_matrix)# 计算两个矩阵的点积 result_matrix=cp.dot(large_matrix,transposed_matrix)# 将结果矩阵的数据从GPU复制回CPU(如果需要在CPU上进一步处理) result_on_cpu=cp...
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The code looks complicated and unreadable at first. But once you get the hang of list comprehensions, you will probably not go back to nested loops. To learn more, visit Python List Comprehension. Also Read: Python Program to Add Two Matrices Python Program to Transpose a Matrix...
The transpose of a matrix is obtained by moving the rows data to the column and columns data to the rows. If we have an array of shape (X, Y) then the transpose of the array will have the shape (Y, X). NumPy Matrix transpose() Python numpy module is mostly used to work with ar...
View Code 让我们开始 一、 表达形式 二、大数 超长显示 总之,问题不大。 Python 3.5.2 |Anaconda custom (64-bit)| (default, Jul 2 2016, 17:53:06) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux Type "help", "copyright", "credits" or "license" for more information. ...
import pickle try: vs = vars() for v in vs.keys(): print(v, len(pickle.dumps(vs[v]))) except Exception e: pass 25. 不用numpy实现矩阵求逆 def transposeMatrix(m): return list(map(list,zip(*m))) def getMatrixMinor(m,i,j): return [row[:j] + row[j+1:] for row in (m[...
The result is a series oftuples, where each tuple contains the corresponding elements from the rows of the original matrix. Example 3: Rearrange 2D List Using NumPy In this final example, we will use thetranspose() functionfrom Python’sNumPy libraryto transpose the 2D list. ...
复杂矩阵问题求导方法:可以从小到大,从scalar到vector再到matrix。 x is a column vector, A is a matrix d(A∗x)/dx=A d(xT∗A)/dxT=A d(xT∗A)/dx=AT d(xT∗A∗x)/dx=xT(AT+A) practice: 常用的举证求导公式如下:Y = A * X --> DY/DX = A'Y = X * A --> DY/...