大约有 9,000 项符合查询结果（耗时：0.0257秒） [XML]
What are the differences between numpy arrays and matrices? Which one should I use?
... advisable to use matrix class since it will be removed in the future.
https://numpy.org/doc/stable/reference/generated/numpy.matrix.html
As other answers already state that you can achieve all the operations with NumPy arrays.
...
“please check gdb is codesigned - see taskgated(8)” - How to get gdb installed with homebrew code si
...rt gdb
echo "set startup-with-shell off" >> ~/.gdbinit
SOURCE:
https://sourceware.org/gdb/wiki/BuildingOnDarwin
share
|
improve this answer
|
follow
|...
What is the email subject length limit?
...RFC and there is usability. Jakob Nielsen article Email Subject Lines: 5 Tips to Attract Readers summarize as: "Focus on the first 40 characters. Descriptive and well-written subject lines allow recipients to make an informed decision to get more details or move on."
– Édouard...
Vagrant ssh authentication failure
...ult to ssh-connect you may simply use
user: vagrant password: vagrant
https://www.vagrantup.com/docs/boxes/base.html#quot-vagrant-quot-user
First, try: to see what vagrant insecure_private_key is in your machine config
$ vagrant ssh-config
Example:
$ vagrant ssh-config
Host default
HostName...
Why can't Python find shared objects that are in directories in sys.path?
...ossible it could not if /usr/local/lib is not in /etc/ld.so.conf already.
PS: it's possible that your /etc/ld.so.conf contains nothing but "include ld.so.conf.d/*.conf". You can still add a directory path after it, or just create a new file inside the directory it's being included from. Dont forget...
MVC pattern on Android
... @LorenzoBarbagli He means, Android doesn't enforce MVC in apps by design (as iOS does). You have to implement a flavor of MVC, MVP or something else yourself if you want to achieve what MVC provides -- namely separation of concerns and an isolated, easily testable Model.
...
What's the difference between istringstream, ostringstream and stringstream? / Why not use stringstr
... whereas you where waiting a write only object, you will not be happy ;-)
PS:
nothing bad about it, just performance issues.
share
|
improve this answer
|
follow
...
Git SVN error: a Git process crashed in the repository earlier
... other git processes running. Make sure a git-svn command isn't hanging.
PS My usual approach to fixing git-svn problems is to make a fresh pull of the repository. Time consuming, but you can do it in parallel with trying to fix the problem. Have a little race between you and git. Of course, thi...
“java.lang.OutOfMemoryError : unable to create new native Thread”
...or : unable to create new native Thread " on 8GB RAM VM after 32k threads (ps -eLF| grep -c java)
13 Answers
...
C++ template中typename和class的区别 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ template中typename和class的区别历史原因，以前是用class，后来C++ Standard 出现后，引入了typename, 所以他们是一样的。但是，又有一些微妙的不同，因为有时候，你不得不使用typename。历史原因，以前是用class，后来C++ Standard 出现...