Because at zero, the function is always defined to be zero, no matter what the key.

So here in the top cloud, we're choosing a truly random function. In the bottom cloud, we're just choosing a random key for a pseudo random function.

Function

Function

function

Function

During his 2004 campaign, Basescu pledged to be a key player.

So there should be an algorithm to evaluate the function E. But more importantly, once we fix the key K, it's important that this function E be one to one.

Percent Function

Exponential function

Perform function

Iran's nuclear programme was a third key topic discussed during Cheney's visit.

EU integration was also a key topic of discussion during the visit.

Kosovo's status was another key issue the three leaders discussed during their meeting.

This function R is gonna be called a round function.

Show function names

I'm a function.

Form and function.

Form follows function?

Form is function.

Then we take this message m1, we apply the next round function to it using a different key, using the key k2. Then we get the next round message out.

There is the cosine function, and there is the tangent function.

And then the first thing that happens is we apply the first round function using the key K1 to the message.

You can also use the tab key to play and pause during this step.

So this function h is, as I say, it's an invertable function.

Iterated function system Images

So let me draw a function here actually, let me define a function here.

During a computation, you can always press Ctrl to make each button display its key binding.

Sometime during the evening... I might be able to get the key out of her bag.

SETimes How does it function?

The color of function buttons.

This function, we just say

I, I'm just a function.

And that's the eval() function.

So let's graph this function.