2 Minutes with Turing Award Winner Whitfield Diffie @TomRocksMaths

Tom Rocks Maths | 2 Minutes with Turing Award Winner Whitfield Diffie @TomRocksMaths | Uploaded 2 years ago | Updated 1 minute ago
Oxford Mathematician Dr Tom Crawford sits down with Whitfield Diffie (2015 Turing Award) to ask 3 questions requested by viewers.

1. What was the first piece of code you remember writing?
2. What is your favourite number?
3. Tabs or spaces?

Interview with Whitfield Diffie recorded at the 2021 Heidelberg Laureate Forum.

Produced by Dr Tom Crawford at the University of Oxford. Tom is an Early-Career Teaching and Outreach Fellow at St Edmund Hall: seh.ox.ac.uk/people/tom-crawford

For more maths content check out Tom's website tomrocksmaths.com

You can also follow Tom on Facebook, Twitter and Instagram @tomrocksmaths. facebook.com/tomrocksmaths
twitter.com/tomrocksmaths
instagram.com/tomrocksmaths

Get your Tom Rocks Maths merchandise here: beautifulequations.net/collections/tom-rocks-maths

With thanks to
Whitfield Diffie
Heidelberg Laureate Forum
Heidelberg Laureate Forum Foundation
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$The Laws of Indices Explained Tom Rocks Maths intern Laura Bradby explains where the laws of indices come from and how negative, zero and fractional powers work. When we first learn about powers, we are usually told that only whole numbers can be used as an index, but this is an over-simplification. By deriving a series of rules or laws for indices, we can in fact calculate zero, negative and fractional powers. The first law states that a^b x a^c = a^(b+c). The second law states that (a^b)^c = a^(bc). Using these laws, we can make a ‘sensible’ definition for zero powers, which must equal 1 for our laws to make sense. This then leads to a definition of negative powers as 1 divided by the positive power. Finally, we derive a rule for fractional powers where the denominator represents a root, and the numerator means to raise the root to that power. Produced by TRM intern Laura Brady – a second year Mathematics student at the University of Oxford – with assistance from Dr Tom Crawford. Tom is an Early-Career Teaching and Outreach Fellow in Mathematics at St Edmund Hall: https://www.seh.ox.ac.uk/people/tom-crawford For more maths content check out Toms website https://tomrocksmaths.com/ You can also follow Tom on Facebook, Twitter and Instagram @tomrocksmaths. https://www.facebook.com/tomrocksmaths/ https://twitter.com/tomrocksmaths https://www.instagram.com/tomrocksmaths/ Get your Tom Rocks Maths merchandise here: https://beautifulequations.net/collections/tom-rocks-maths$