Abstract: The objective of this paper is to derive a tight and efficient lower bound for the minimum sum coloring problem. This NP-hard problem is a variant of the classical graph coloring problem ...

The total number of active drilling rigs for oil and gas in the United States rose this week, according to new data that Baker Hughes published on Friday, bringing the total rig count in the US to 551 ...

In this video, you'll learn three methods to SUM and COUNT cells in Excel based on cell color, as Excel does not have a built-in way to sum by cell color. - **Method 1:** Use the SUBTOTAL function ...

This story is part of the KXAN Data Hub, where numbers help tell the whole story. We’ve created several data-driven stories and databases on topics including weather and climate, politics, education, ...

This story is part of the KXAN Data Hub, where numbers help tell the whole story. MILAN (KXAN) — More than 2,900 athletes from across the world are competing in the 2026 Olympic Games in Milan Cortina ...

MILAN (KXAN) — More than 2,900 athletes from across the world are competing in the 2026 Olympic Games in Milan Cortina, Italy. With 116 medal events in total, KXAN is keeping track of how many medals ...

Built between 180 and 193 C.E., the column depicts the battles of the Roman emperor Marcus Aurelius, with more than 2,000 highly detailed figures spiraling around the shaft. Stefano Venturini / REDA / ...

In case you still want to support IE11, you need to include jsPDF's polyfills.umd.js. Please do this before you include jspdf.umd.min.js and html2canvas.min.js Many HTML stylings can be converted to ...

Have you ever stared at a colorful Excel spreadsheet, wondering how to quickly calculate totals or counts based on cell colors? It’s a common frustration for anyone managing large datasets. While ...

The primary key column is often set to auto-increment when constructing a SQL Server database. To achieve this, the IDENTITY property is enabled on the primary key column. The starting value and ...