Show Me the Maths - Arun

Our new short film series 'Show Me the Maths' doesn't beat about the mathematical bush. It gets right down to it. Down, that is, to the maths, in all its crucial, complex, sometimes incomprehensible (even to other mathematicians) guises. It's what mathematicians do.
Here's Arun. You can find out more about Arun's work here: www.maths.ox.ac.uk/people/aru...
Go to the playlist for more 'Show Me the Maths' films: • Show Me the Maths

[@iansragingbileduct]

Very clean explanation for those with some sense of the jargon. Good stuff.

[@Saurabhmaths1999]

18×9=?

[@TheDavidlloydjones]

162.
Why do you ask?

[@Saurabhmaths1999]

@@TheDavidlloydjones find the value
18×9=

[@bbqisfreshfromgod1316]

@@Saurabhmaths1999 162