I pushed eight free AI chatbots to their limits to find the best AI chatbots of 2026. To explore our top picks, check out ZDNET's chatbot-by-chatbot guide.

Dr. James McCaffrey presents a complete end-to-end demonstration of linear regression with pseudo-inverse training implemented using JavaScript. Compared to other training techniques, such as ...

What if you could transform hours of tedious spreadsheet work into just minutes of streamlined efficiency? Simon Sez IT takes a closer look at how Excel’s most powerful functions can transform the way ...

The simplest way to use the SUM function in Excel is to enter a range of cells to calculate their total value. To do this, follow these steps: – Click on an empty cell where you would like the sum to ...

You’ve used SUM for years. It adds numbers, does its job, and you probably don’t think twice about it. But while you’ve been clicking through filters and building messy helper columns, Excel has been ...

Have you ever thought of the humble SUM function as a secret weapon for advanced analytics? Most Excel users see it as a basic tool for adding numbers, but what if I told you it could do so much more?

Abstract: A combined cryptosystem with symmetric keys for encrypting messages is proposed. Its unique feature is the use of functions of a real variable as keys instead of natural numbers. Eight key ...

The latest State of JavaScript survey provides an up-close look at the JavaScript language features, tools, libraries, and frameworks developers are using and how they're using them. Getting a ...

Abstract: With the advancement of monopulse radar technology, synthesis of the sum-and-difference patterns (SDPs) for the radome-enclosed arrays has emerged as a pressing area of research. Due to the ...

1 Institute of Mathematics, University of Lübeck, Lübeck, Germany 2 Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine This paper ...