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Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.
Here's our coverage from the International Congress of Mathematicians 2022, including the Fields Medals and other prizes.
The COVID-19 pandemic has amplified the differences between us. Understanding these inequalities is crucial for this and future pandemics.
Now it's the turn of mathematicians to help to improve the communities of the future.
There have been accusations that the modelling projecting the course of the pandemic was too pessimistic. Are they justified?
We all know what turbulence is, but nobody understands it.
The criteria wasn't "no repeating" digits -- just " not all repeating." In other words, you can't use 1111,2222,3333,4444,5555,6666,7777,8888, or 9999 for obvious reasons (the largest and smallest numbers would be the same and so the first subtraction would yield zero). But any other 4-digit combination should work -- so 1112 or 1311 or whatever would be fine.