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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?

I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it. ...
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How can I post an array of string to ASP.NET MVC Controller without a form?

...C and JQuery, and one of the pages is a list of items in which some can be selected. Then I would like to press a button and send a List (or something equivalent) to my controller containing the ids of the items that were selected, using JQuery's Post function. ...
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Unresolved reference issue in PyCharm

...         After all this don't forget to restart. In PyCharm menu select: File --> Invalidate Caches / Restart share | improve this answer | follow ...
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The transaction manager has disabled its support for remote/network transactions

...ick the Security tab and make the following changes: In Security Settings, select the Network DTC Access check box. In Transaction Manager Communication, select the Allow Inbound and Allow Outbound check boxes. share ...
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Javascript - How to extract filename from a file input control

When a user selects a file in a web page I want to be able to extract just the filename. 14 Answers ...
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How can I turn a List of Lists into a List in Java 8?

... .collect(Collectors.toList()) This is would be similar in SQL to having SELECT statements within SELECT statements. share | improve this answer | follow | ...
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Zooming MKMapView to fit annotation pins?

... I've also found this useful for selecting annotations outside the current visible map area. By default, MapView doesn't select non-visible annotations. Call showAnnotations with an array of your non-visible annotation(s), prior to calling selectAnnotation, ...
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How to get element by classname or id

...e Angular): var wrappedResult = angular.element(result); If you want to select from the element in a directive's link function you need to access the DOM reference instead of the the jqLite reference - element[0] instead of element: link: function (scope, element, attrs) { var elementResult =...
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How to connect to SQL Server database from JavaScript in the browser?

...onnectionstring); var rs = new ActiveXObject("ADODB.Recordset"); rs.Open("SELECT * FROM table", connection); rs.MoveFirst while(!rs.eof) { document.write(rs.fields(1)); rs.movenext; } rs.close; connection.close; A better way to connect to a sql server would be to use some server side lang...
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Is there a way to create multiline comments in Python?

... In any case, your text editor should also be able to easily comment-out a selected region (by placing a # in front of each line individually). If not, switch to a text editor that does. Programming in Python without certain text editing features can be a painful experience. Finding the right edito...