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LAST EDIT: after 7 years I’m still getting upvotes for this answer, but I guess this one is now much more accurate. Sure you can, but you’ll need to render the page with something. If you really want to only use php, I suggest you HTMLTOPS, which renders the page and outputs it in a … Read more

What are the differences between numpy arrays and matrices? Which one should I use?

Numpy matrices are strictly 2-dimensional, while numpy arrays (ndarrays) are N-dimensional. Matrix objects are a subclass of ndarray, so they inherit all the attributes and methods of ndarrays. The main advantage of numpy matrices is that they provide a convenient notation for matrix multiplication: if a and b are matrices, then a*b is their matrix … Read more

Predefined type ‘System.ValueTuple´2´ is not defined or imported

For .NET 4.6.2 or lower, .NET Core 1.x, and .NET Standard 1.x you need to install the NuGet package System.ValueTuple: Install-Package “System.ValueTuple” Or using a package reference in VS 2017: <PackageReference Include=”System.ValueTuple” Version=”4.4.0″ /> .NET Framework 4.7, .NET Core 2.0, and .NET Standard 2.0 include these types.

How do I print a double value with full precision using cout?

You can set the precision directly on std::cout and use the std::fixed format specifier. double d = 3.14159265358979; cout.precision(17); cout << “Pi: ” << fixed << d << endl; You can #include <limits> to get the maximum precision of a float or double. #include <limits> typedef std::numeric_limits< double > dbl; double d = 3.14159265358979; cout.precision(dbl::max_digits10); … Read more

How can I format my grep output to show line numbers at the end of the line, and also the hit count?

-n returns line number. -i is for ignore-case. Only to be used if case matching is not necessary $ grep -in null myfile.txt 2:example two null, 4:example four null, Combine with awk to print out the line number after the match: $ grep -in null myfile.txt | awk -F: ‘{print $2″ – Line number : … Read more

How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?

If you open the .aspx file and switch between design view and html view and back it will prompt VS to check the controls and add any that are missing to the designer file. In VS2013-15 there is a Convert to Web Application command under the Project menu. Prior to VS2013 this option was available … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)