Collaborate Disseminate
An anonymous reader shares a report: We often think of multiplication and division as calculations that need to be taught in school. But a large body of research suggests that, even before children begin formal education, they possess intuitive arithme… Continue reading Children May Instinctively Know How To Do Division Even Before Hitting the Books, Study Finds
joshuark shares a report from Popular Mechanics: A mathematician from Harvard University has (mostly) solved a 150-year-old Queen’s gambit of sorts: the delightful n queens puzzle. In newly self-published research (meaning it has not yet been peer-revi… Continue reading Harvard Mathematician Proves 150-Year Old Chess Puzzle
A group of Brown University physicists has developed a technique that can potentially generate millions of random digits per second by harnessing the behavior of skyrmions — tiny magnetic anomalies that arise in certain two-dimensional materials. Phys… Continue reading Researchers Use Tiny Magnetic Swirls To Generate True Random Numbers
In 1992 John Conway raised a question about the patterns in his famous mathematical Game of Life: “Is there a Godlike still-life, one that can only have existed for all time (apart from things that don’t interfere with it)?”
Conway closed his note by… Continue reading A Conway ‘Game of Life’ Conjecture Settled After 29 years
In 1992 John Conway raised a question about the patterns in his famous mathematical Game of Life: “Is there a Godlike still-life, one that can only have existed for all time (apart from things that don’t interfere with it)?”
Conway closed his note by… Continue reading A Conway ‘Game of Life’ Conjecture Settled After 29 years
How many red and blue beads can you string together without making a big evenly spaced sequence of the same color? Using a semi-structured pattern of squashed circles, a mathematician shattered the previous record for how long you can keep stringing be… Continue reading Mathematician Hurls Structure and Disorder Into Century-Old Problem
Slashdot reader DevNull127 writes: It’s a newspaper puzzle that’s like Sudoku, except it’s impossible. [Sort of…] They call it “The Challenger” puzzle — but when the newspaper leaves out a crucial instruction, you can end up searching forever f… Continue reading ‘When a Newspaper Publishes an Unsolvable Puzzle’
[Paul Curtis] over at Segger has an interesting series of blog posts about calculating division. This used to be a hotter topic, but nowadays many computers or computer languages have …read more Continue reading Apple Falling Division
“A team of researchers has finally created a long-sought locally testable code that can immediately betray whether it’s been corrupted…” reports Quanta magazine.
“Many thought local testability would never be achieved in its ideal form.”
People tend to obsess over making computer software faster. You can, of course, just crank up the clock speed and add more processors, but often the most powerful way to …read more Continue reading Hacking Multiplication with Karatsuba’s Algorithm