小编IKa*_*agh的帖子

我在使用Java运行MATLAB代码时遇到了问题.如果您对此有所了解,请帮帮我吗？

当我设置时,我正在尝试更新我的brew

brew更新

我收到此错误:

error: Your local changes to the following files would be overwritten by merge:
    Library/Formula/imagemagick.rb
Please, commit your changes or stash them before you can merge.
Aborting
Error: Failure while executing: git pull -q origin refs/heads/master:refs/remotes/origin/master

要么

error: The requested URL returned error: 403 while accessing https://github.com/mxcl/homebrew/info/refs
fatal: HTTP request failed
Error: Failure while executing: git pull -q origin refs/heads/master:refs/remotes/origin/master

Git有什么问题？如果这种方式不起作用,如何更新brew？

nma-2:test nikolaialeksandrenko$ brew install ant
==> Downloading http://www.apache.org/dyn/closer.cgi?path=ant/binaries/apache-ant-1.9.0-bin.tar.gz
==> Best Mirror http://apache.igor.onlinedirect.bg/ant/binaries/apache-ant-1.9.0-bin.tar.gz

curl: (22) The requested URL returned error: 404 Not Found
Error: Download failed: http://www.apache.org/dyn/closer.cgi?path=ant/binaries/apache-ant-1.9.0-bin.tar.gz

我正试图用我的mac安装蚂蚁...我在做错了什么？

我试图在Yosemite上通过RVM安装Ruby on Rails.但是,当我尝试运行"捆绑安装"时,一切似乎都有效,我发现有关Nokogiri的错误:

pauls-air:~ paulmcguane$ gem install nokogiri -- --with-xml2-include=/usr/local/Cellar/libxml2/2.9.1/include/libxml2 --with-xml2-lib=/usr/local/Cellar/libxml2/2.9.1/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.28 --with-iconv-include=/usr/local/Cellar/libiconv/1.13.1/include --with-iconv-lib=/usr/local/Cellar/libiconv/1.13.1/lib
Building native extensions with: '--with-xml2-include=/usr/local/Cellar/libxml2/2.9.1/include/libxml2 --with-xml2-lib=/usr/local/Cellar/libxml2/2.9.1/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.28 --with-iconv-include=/usr/local/Cellar/libiconv/1.13.1/include --with-iconv-lib=/usr/local/Cellar/libiconv/1.13.1/lib'
This could take a while...
Building nokogiri using packaged libraries.
ERROR:  Error installing nokogiri:
    ERROR: Failed to build gem native extension.

错误消息是:

/Users/paulmcguane/.rvm/rubies/ruby-2.1.2/bin/ruby extconf.rb
Building nokogiri using packaged libraries.
-----
libiconv is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of …

I've installed Thrift on my Mac using Homebrew: brew install thrift --with-python

That did some work and finished w/o errors reported. I have thrift on my path.

I write a simple python client from a tutorial: (there is some python thrift code in gen-py)

#!/usr/bin/python

import sys
sys.path.append("./gen-py")

from thrift import Thrift
from thrift.transport import TSocket
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol

# rest of program...

When run I get this error:

Traceback (most recent call last):
  File …

我在用 mkl cblas_dgemm,目前拥有它CblasRowMajor,CblasNoTrans,CblasNotrans,我的矩阵.

我知道这c是一种主要的主要语言,而是dgemm一个主要的列算法.我很想知道cblas_dgemm如果我链接的话,切换矩阵的顺序是否会对算法产生任何影响mkl.是否mkl足够聪明,可以在幕后做一些我试图优化矩阵乘法的事情？如果不是,执行矩阵乘法的最佳方法是什么mkl？

我想在从 S3 存储桶加载我的视频时在 Video.js 播放器中显示加载程序。

我有一个 Video.js 播放器，它显示一个“播放”按钮，单击此按钮时播放器会显示黑屏，直到从 S3 存储桶加载视频为止。如何显示加载程序来代替黑屏？

关于将infowindow分配给地图中的每个标记,我遇到了问题.

JS代码:

for (i=0;i<location.length;i++){
    var id = location[i][0];
    var name = location [i][1];
    var pos = new google.maps.LatLng(location[i[3],location[i][4]);


    var contentString = id;
    var infowindow = new google.maps.InfoWindow({content:contentString});
    var marker= new google.maps.Marker({position: pos, map: map, title: id});

    marker.addListener('click', function() { infowindow.open(map, this);

});

问题是我的点击处理程序将为每个标记显示相同的"id"(显示的id是我的数据库中我的LAST记录的id).有没有办法显示每个标记的每个infowindow？

我有一个3D矩阵,我想将其中的每个2D分量存储在另一个2D矩阵的行中,该矩阵有许多行作为3D矩阵的第三维.

我怎样才能做到这一点？

我遇到了一个又一个 SFML 问题，但希望它最终是值得的。

这是错误：

致命错误：SFML/Graphics.hpp：没有这样的文件或目录

和代码：

#include < SFML/Graphics.hpp >
#include < SFML/Window.hpp >

int main(){
sf::RenderWindow Window;
Window.create(sf::VideoMode(800, 600), "SFML");

while(Window.isOpen()){
    sf::Event Event;
    while(Window.pollEvent(Event)){
        if(Event.type == sf::Event::Closed)
            Window.close();
    }
}
}