Rationalising an expression means getting rid of any surds from the bottom (denominator) of fractions. Usually when you are asked to simplify an expression it means you should also rationalise it.

Editor’s note (July 2020): In this essay from 1955 C. Northcote Parkinson described and defined the natural tendency for officials to make more work for each other. The charts have been updated to fit ...

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Practise your 2 times tables with this quiz. The 5 times table Learn all about the 5 times table and find out about multiples of 5. The 10 times table Discover the 10 times tables and try this quiz.

Math anxiety grows from stress, culture, and experience, not ability. By changing how we teach, test, and talk about math, we can reduce fear.

Intestinal fibrosis is a common and potentially serious complication of IBD that results from the reaction of intestinal tissue to the damage inflicted by chronic inflammation. The traditional view ...

Vikki Velasquez is a researcher and writer who has managed, coordinated, and directed various community and nonprofit organizations. She has conducted in-depth research on social and economic issues ...

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Note on factoring Fermat numbers: GMP-ECM features Schönhage-Strassen multiplication for polynomials in stage 2 when factoring Fermat numbers (not in the new, fast stage 2 for P+1 and P-1. This is to ...