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The COVID-19 emergency resulted in some amazing mathematical collaborations.

Here's a simple game at which a human can out-fox even the cleverest algorithm.

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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.

By using polish or reversed polish notation this problem just disappears. it really is just a problem of semantics / (mathematical) language; and by using such a notation the ambigity just goes. Here it is in RPN:

$ dc

6 2 / 1 2 + * p

9

6 2 1 2 + * / p

1