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Watch as a frustrating math problem inspires a creative journey from paper to precision engineering. See how a simple multiplication error sparks the design of a mechanical DIY calculator, beautifully ...

HISTORIANS of mathematics attribute the first use of the cross x as a symbol for multiplication to William Oughtred (“Clavis Mathematicae”, London, 1631). See W. W. R. Ball's “Short Account of the ...

Using a loan calculator can help you estimate the total cost and monthly payments of different loans, such as mortgages, car loans, or personal loans. By adjusting loan terms and interest rates, you ...

To estimate your home insurance premium, start by considering where you live and how much coverage you need. Many, or all, of the products featured on this page are from our advertising partners who ...

Most pockets in the human leukocyte antigen–group DR (HLA-DR) groove are shaped by clusters of polymorphic residues and, thus, have distinct chemical and size characteristics in different HLA-DR ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Doretha Clemons, Ph.D., MBA, PMP, has been a corporate IT executive and professor for 34 years. She is an adjunct ...

The Matrix collection depicts a complex science fiction story incorporating many philosophical elements. Written and directed by the Wachowskis and produced by Joel Silver.