Interactive Computations
Use the free Wolfram Mathematica Player to interact with the math behind NUMB3RS.
Upchurch takes in the scene.

UPCHURCH (cont'd)
... but the big money snatches tend
to put you in contact with a higher
class of lowlife.  If they know
their business -- and it looks to
me like they do -- we'll be looking
at simultaneous movement, expected
payoffs, bargaining strategies...
lots of variables.

CHARLIE (O.S.)
What you're talking about is
imperfect information games.

# Iterated Games »

Often players in a scenario that can be modeled as a strategic-form game engage in repeated interactions with each other. In such instances, their selection of a strategy on a given "iteration" may depend on their history of previous interactions. By way of example, a player might start by playing strategy 1 and continue playing it unless the history of interactions is such that the opposing player played 0 on his/her last two turns.
LARRY
Actually, Charles, you can't find
this in any shop.  I've constructed
my own Hero's Fountain.

OFF Charlie's look --

AMITA
...Named for Hero of Alexandria.
The Greek mathematician and
engineer.  Once we get the pressure
right, the water will start to flow
under its own power.

# Linked Sliders »

Heron's formula (also called Hero's formula) gives the area of triangle in terms of a triangle's side lengths a, b, and c as sqrt((a + b + c)(-a + b + c)(a - b + c)(a + b - c))/4. Triangles having rational sides and area are known as Heronian triangles.
CHARLIE
I think what he's trying to say is
Pierce has violated his own rules of
corporate Game Theory.  It's standard
Minimax -- like a tug of war --

# Profit Maximization in Perfect Competition »

A perfectly competitive firm with rising marginal costs maximizes profit by producing up until the point at which marginal cost is equal to marginal revenue. The marginal revenue for a perfectly competitive firm is the market price determined by the intersection of the supply and demand curves, as shown in the panel on the left. The panel on the right shows the orange price line intersecting the purple marginal cost curve at the profit maximizing quantity, Qmax.
AMITA
If we had a DTMF decoder --
(off David)
Dual-tone multi-frequency -- touchtone.

DAVID
Because you couldn't have said that
in the first place.

AMITA
It wouldn't have been as much fun.

# Touch Tones »

Dial and listen to the touch tones. Press the composed number to listen to its tone sequence. Numbers can be stored and retrieved from the menu.
LARRY
...Perhaps not an altogether bad
thing.
(off her look)
The charged particles of the solar
wind need heat and combustion to
escape the gravitational pull of the
sun.  From tumult comes freedom.

MEGAN
You have a way of making my
neurosis sound so... cosmic.

# Charged Particle in Uniform Electric and Magnetic Fields »

The path of a charged and otherwise free particle in uniform electric and magnetic fields depends on the charge q of the particle and the electric and magnetic field strengths E and B.