funzione nel vicoletto e matematici al mare

[hexen]

c'è una funzione che cammina da sola di notte in un vicoletto... incontra $ \frac d {dx} $ con aria minacciosa
- Levati di mezzo o ti derivo finche non diventi zero!!
- Hahaha, provaci, io sono $ e^x $
e la derivata ci rimane male e se ne va.

La notte dopo l'esponenziale ripassa nello stesso vicoletto e fa lo stesso incontro
- Levati di mezzo o ti derivo!!
- Hahaha io sono $ e^x $
- dehehe io sono $ \frac d {dy} $

poi... (funziona solo in inglese)
Q: Why do you rarely find mathematicians spending time at the beach?
A: Because they have sine and cosine to get a tan!

[EvaristeG]

ah beh, se vogliamo arrivare a questo livello :

Algebraists do it by symbolic manipulation.
Algebraic geometers do it for variety.
Algebraic geometers do it on the cubic three-fold.
Algebraists do it in a ring.
Algebraists do it in fields.
Algebraists do it in groups.
Algebraists do it with multiple roots.
Analysts do it continuously.
Analysts do it smoothly.
Analytic number theorists do it in the critical strip.
Analytic number theorists do it on the critical line.
Applied mathematicians do it by computer simulation.
Banach spacers do it completely.
Bayesians do it with improper priors.
Catastrophe theorists do it falling off part of a sheet.
Chaoticians do it with sensitive dependence
Class field theorists do it by capitulation.
Classical geometers do it on the Euler line.
Classical geometers do it on the nine-point circle.
Combinatorialists do it discretely.
Commutative algebraists do it regularly.
Complex analysts do it between the sheets
Complex analysts do it under a universal cover.
Constructivists do it without excluding the middle.
Decision theorists do it optimally.
Differential analysts do it in a degenerate case.
Functional analysts do it with compact support.
Functional analysts do it with degenerate colonels.
Galois theorists do it in a field.
Game theorists do it by dominance or saddle points.
Geometers do it with involutions.
Graph theorists do it discretely.
Graph theorists do it in four colours.
Group theorists do it simply.
Group theorists do it with the Monster.
Hilbert spacers do it orthogonally.
Large cardinals do it inaccessibly.
Linear programmers do it with nearest neighbors.
Logicians do it by choice.
Logicians do it consistently and completely.
Logicians do it incompletely or inconsistently.
Logicians do it with Jensen's device.
(Logicians do it) or [not (logicians do it)].
Mathematicians do it associatively.
Mathematicians do it by numbers.
Mathematicians do it commutatively.
Mathematicians do it constantly.
Mathematicians do it continuously.
Mathematicians do it discretely.
Mathematicians do it exponentially.
Mathematicians do it forever if they can do one and can do one more.
Mathematicians do it functionally.
Mathematicians do it homologically.
Mathematicians do it in fields.
Mathematicians do it in groups.
Mathematicians do it in imaginary planes.
Mathematicians do it in n dimensions.
Mathematicians do it in numbers.
Mathematicians do it in theory.
Mathematicians do it on smooth contours.
Mathematicians do it over and under the curves.
Mathematicians do it parallel and perpendicular.
Mathematicians do it partially.
Mathematicians do it rationally.
Mathematicians do it reflexively.
Mathematicians do it symmetrically.
Mathematicians do it to prove themselves.
Mathematicians do it to their limits.
Mathematicians do it totally.
Mathematicians do it transcendentally.
Mathematicians do it transitively.
Mathematicians do it variably.
Mathematicians do it with a Minkowski sausage.
Mathematicians do it with imaginary parts.
Mathematicians do it with linear pairs.
Mathematicians do it with Nobel's wife.
Mathematicians do it with odd functions.
Mathematicians do it with prime roots.
Mathematicians do it with relations.
Mathematicians do it with rings.
Mathematicians do it with their real parts.
Mathematicians do it without limit.
Mathematicians do over an open unmeasurable interval.
Mathematicians have to prove they did it.
Mathmaticians do it ad infinitum.
Measure theorists do it almost everywhere.
Measure theorists do it almost nowhere.
Moebius always does it on the same side.
Number theorists do it perfectly.
Number theorists do it rationally.
Number theorists do it in the critical strip.
Pure mathematicians do it rigorously.
Real analysts do it almost everywhere
Real analysts do it uniformly.
Ring theorists do it non-commutatively.
Set theorists do it in a morass.
Set theorists do it with cardinals.
Topologists do it in multiply connected domains
Topologists do it on rubber sheets.
Topos theorists do it pointlessly.

[Faust]

MIO DIO...