KWrite

• An execuse for not doing math homework: “I could only get arbitrarily close to my textbook, I couldn’t reach it.”
• Q: What is a topologist?
  A: Someone who cannot distinguish between a donut and a coffee cup.
• Q: What’s a dilemma?
  A: A lemma that produces two results.
• A mathematician and an engineer are on a desert island. They find two palm trees with one coconut each. The engineer shinnies up one tree, gets the coconut, and eats it. The mathematician hinnies up the other tree, gets the coconut, climbs the other tree and puts it here. “Now we’ve reduced it to a problem we know how to solve.”

Source

Source: The Times

Nicolas Sarkozy appointed Mr Kerviel yesterday to the post of Finance Minister, to replace Christine Lagarde: “He has only lost €5 billion, while she has a deficit of €50 billion,” according to “Sarko”.

[from www.vnqf.org]

1. Let be a Brownian motion. What is ?
2. How do you compute
3. After each second, an insect may: either die, or survive, or split into 2, or split into 3 (each with probability 0.25). Suppose that there’s 1 insect at the beginning of the day, what is the probability that the whole population dies at the end of the day?
4. (Programming) Given 2 variables a and b. How do you swap the values of a and b without using any extra memory?
5. (Blog KHMT) Suppose (infinite power). What is x?