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Part of a calculus demonstration written on a blackboard. (TV: The Pilot [+]Loading...["The Pilot (TV story)"])

Mathematics was the study of numbers.

Romulus and Remus Sylvest were mathematical geniuses. (TV: The Twin Dilemma [+]Loading...["The Twin Dilemma (TV story)"]) Peter Hutchings was a professor of mathematics at the University of Cambridge. (PROSE: Timewyrm: Revelation [+]Loading...["Timewyrm: Revelation (novel)"]) Danny Pink taught mathematics at Coal Hill School. (TV: Into the Dalek [+]Loading...["Into the Dalek (TV story)"]) Spending time in 1138 Essex, the Twelfth Doctor mentioned he'd provided the citizens with "top-notch maths tuition in a fun but relevant way", among other things. (TV: The Magician's Apprentice [+]Loading...["The Magician's Apprentice (TV story)"]) Before becoming a Renegade, the Master taught mathematics and computer science at the Prydonian Academy for a time. (PROSE: CIA File Extracts [+]Loading...["CIA File Extracts (novel)"])

Some of the companions of the Doctor studied or taught mathematics. Jackson Lake was a mathematics teacher. (TV: The Next Doctor [+]Loading...["The Next Doctor (TV story)"]) Alistair Gordon Lethbridge-Stewart taught mathematics at Brendon Public School. (TV: Mawdryn Undead [+]Loading...["Mawdryn Undead (TV story)"]) Adric was awarded a gold star badge for mathematical excellence. (TV: Full Circle [+]Loading...["Full Circle (TV story)"]) Zoe Heriot introduced herself to the Second Doctor and Jamie McCrimmon as "astrophysicist, pure mathematics major", to which her colleague, Dr Gemma Corwyn, added "with honours". (TV: The Wheel in Space [+]Loading...["The Wheel in Space (TV story)"])

In mathematics, 𝑖 was an imaginary number that was the value of the square root of negative one. (AUDIO: Iterations of I [+]Loading...["Iterations of I (audio story)"])

51 was a pentagonal number. (TV: The Tsuranga Conundrum [+]Loading...["The Tsuranga Conundrum (TV story)"])

Any number that "reduce[d] to 1 when you take the sum of the square of its digits, and continue[d] iterating it until it yield[ed] 1," was a happy number. (TV: 42 [+]Loading...["42 (TV story)"])

Types of mathematics[[edit]]

An application of mathematics known as Block Transfer Computation could be used to create objects and alter spacetime. (TV: Logopolis [+]Loading...["Logopolis (TV story)"])

The Tenth Doctor mentioned recreational mathematics, which involved the study of happy prime numbers, numbers which are both happy and prime. He seemed surprised it wasn't a regularly studied course. (TV: 42 [+]Loading...["42 (TV story)"])