A squaregraph has a plane embedding in which every bounded face has four sides and every interior vertex has degree at least four. Its outer face may have more than four sides, so this definition differs from a planar quadrangulation requiring every face to have degree four.
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As of my last knowledge update in October 2023, Squaregraph is a tool designed for businesses and organizations to help visualize data and create high-quality graphics for reporting, presentations, or marketing. It often aims to make data analysis more accessible and engaging through various visualization techniques, such as graphs, charts, and infographics. Squaregraph typically offers features that allow users to analyze data, generate visual content, and customize layouts to suit specific branding or informational needs.