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### Author Topic: Étonné - logic, math, crypto and programming problems  (Read 20400 times)

#### ivanv

• Participant
• Joined in 2006
• Posts: 27
##### Re: Étonné - logic, math, crypto and programming problems
« Reply #25 on: September 18, 2007, 09:23 AM »
Nice. Now I'll have to think a while about the f(x) question. Just a small pointer maybe?

Spoiler
f(x) = ceiling
f(x) = palindrome
f(x) = ? (I don't know yet)
f(x) = breast
f(dessert) = distress

Am I going in the right direction?

#### TPReal

• Honorary Member
• Joined in 2006
• Posts: 129
##### Re: Étonné - logic, math, crypto and programming problems
« Reply #26 on: September 18, 2007, 09:36 AM »
First of all, read the question once again, very carefully, look especially on the f(x) = x part, because I think you misunderstood something a bit. But I also see you sort of found the clue. Think about synonyms to the words you gave.

#### ivanv

• Participant
• Joined in 2006
• Posts: 27
##### Re: Étonné - logic, math, crypto and programming problems
« Reply #27 on: September 18, 2007, 10:12 AM »
I think I've found the third answer.

And you mean:

Spoiler
f(height above ground) = top

?

I'll need to sleep on this one

#### TPReal

• Honorary Member
• Joined in 2006
• Posts: 129
##### Re: Étonné - logic, math, crypto and programming problems
« Reply #28 on: September 18, 2007, 10:22 AM »
Still not exactly. It is said that for the four given values of x, it is true that f(x) = x. In other words
Spoiler
f(height above ground) = height above ground

and so on. And think about some synonyms in the fifth equation.