do IT

Como cada um o faz...
Esta questão é interessante mas, mais interessante ainda é esta demonstração que encontrei refundida num canto obscuro da web.
Basicamente é uma listagem das várias formas que os matemáticos têm de o fazer. O quê, deixo ao vosso critério mais porco... Não me parece nada de jeitoso, e soa a detritos orgânicos espalhados por tudo quanto é têxtil na cavidade resinosa do quarto.
Tomei a liberdade de manter toda a estrutura na língua inglesa porque torna toda a sonoridade vocal bem mais divertida em todo o corpo cavernoso da teoria.
Eu pessoalmente, prefiro entre duas fatias de pão saloio, ligeiramente torradas e barradas com alho e manteiga. Um toque ligeiro de óregãos e mostarda-do-reino e fica pronto a aviar. tau.

Combinatorists do it as many ways as they can.
Combinatorists do it discretely.
(Logicians do it) or [not (logicians do it)].
Logicians do it by symbolic manipulation.
Algebraists do it in groups.
Algebraists do it in a ring.
Algebraists do it in a field.
Analysts do it continuously.
Real analysts do it almost everywhere.
Pure mathematicians do it rigorously.
Topologists do it openly.
Topologists do it on rubber sheets.
Dynamicists do it chaotically.
Operations researchers do it with models.
Mathematicians do it forever if they can do one and can do one more.
Cantor did it diagonally.
Fermat tried to do it in the margin, but couldn't fit it in.
Galois did it the night before.
Möbius always does it on the same side.
Markov does it in chains.
Newton did it standing on the shoulders of giants.
Turing did it but couldn't decide if he'd finished.
Descartes did it planely and with a point.
The ancient Greek mathematicians did it irrationally.
Archimedes did it naked whilst running in the streets of Syracuse shouting EUREKA!!
Fibonacci did it in sequence.
Pythagoras did it with two legs at right angles, and a hypoteneus stretching out between them.
Cauchy kept getting closer and closer, but never got all the way there.
Newton liked to lie tangent to the curves, Riemann preferred the area under them.
Einstein said it's important not to stop.
Heisenberg was certain of the position he did it in, but unsure of the speed.
Schrödinger did it in a box until someone observed him. Then he collapsed.