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Since 2000

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Equal sums task

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Square matrix is a matrix with the same number of rows and columns. Square matrices of variable dimensions are displayed on the screen.

Matrix elements should be set so that the sum of the elements within each row and column of the matrix is equal.

There are 2 variants (paradigms) of this task.

In the first variant, the missing values should be entered on the main diagonal of the square matrix (there are infinitely many solutions).

In the second variant, the elements of the square matrix should be moved using the "drag and drop" action.

Language interface: Simple English

Software requirements: Any web browser with ECMAScript 2015 (ES6) support. See browser list: here.

The application has been tested on the following web browsers: Firefox, Chrome, Edge, Internet Explorer 11, Opera. We mainly develop all our web applications in the Firefox browser. Therefore, generally speaking, the new version of Firefox is always the most secure solution for reliable use of our web applications.

Licence: GNU Lesser General Public License

Version: 1.0