Abstract: This work studies the modeling and optimization of beyond diagonal reconfigurable intelligent surface (BD-RIS) aided wireless communication systems in the presence of mutual coupling among ...

Abstract: Diagonal loading is one of the most widely used and effective methods to improve the robustness of both adaptive beamformers and Direction of Arrival (DOA) estimation due to the involvement ...

For generations, Indian students have learnt it simply as the Pythagoras Theorem. In a quiet but significant shift, the Class ...

This is for the first time that the Baudhāyana–Pythagoras Theorem has been introduced in Class 8 NCERT Math textbook.

The textbook uses examples from Indian monuments and cultural contexts to explain key concepts of the subject, including ...

At what age should I take Social Security? At age 62? Sixty-five? Seventy? The question matters, because your monthly Social ...

If you’re not sure how to wrap a present, there’s an easy hack you can try. The clever trick—wrap diagonally, not horizontally or vertically—is based in math. Basic geometric principles explain how it ...

The Artificial Intelligence chatbot, ChatGPT, appeared to improvise ideas and make mistakes like a student in a study that rebooted a 2,400-year-old mathematical challenge. The experiment, by two ...

Once a century, a very special day comes along. That day is today — 9/16/25. Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.

It feels almost surreal to be writing about Hollow Knight Silksong in a present sense rather than a potential one, but here we are. So far, Team Cherry's long-anticipated sequel appears to be a ...

Lucas Downey is the co-founder of MoneyFlows, and an Investopedia Academy instructor. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, is an experienced financial consultant. She has a demonstrated ...