Zhou on WordPress

floating point number

zhouji — Sun, 04 Dec 2011 16:31:33 +0000

I am imaging the gap between the floating point numbers represented in computer. Let’s compare an int and a float in 32 bits. The largest positive int is 2^16-1, and it is quite obvious that we cannot have that number, say, x and x-1 both represented in float. Furthermore, considering all the fractions we want to represent in the same 32 bits, the gap between two consecutive floating point numbers must be really large around x. It should be even bigger for larger numbers.

Sentiments

zhouji — Sun, 26 Jun 2011 21:48:34 +0000

It is not the strength, but the duration of great sentiments that makes great men.

Nietszche

Beyond good and evil

zhouji — Thu, 16 Jun 2011 22:38:28 +0000

By Nietszche

I’m reading …

Oppenheimer

zhouji — Tue, 24 May 2011 13:44:51 +0000

I watched a PBS show about Oppenheimer last night. Everybody who still has some faith in their government should watch it. (J. Robert Oppenheimer, just to be clear)

dollar auction

zhouji — Tue, 24 May 2011 13:40:42 +0000

an old bookmark is broken now. so I keep this link The Irrational Escalation of Commitment

人生苦短

zhouji — Sat, 21 May 2011 16:39:57 +0000

倒不是要没完没了地活下去，只是很多梦想的事只有那么短的时间窗口可能去尝试，过了那个年龄就永远过去了

大智慧可无，小聪明不可有

zhouji — Wed, 06 Apr 2011 17:19:49 +0000

time

zhouji — Wed, 09 Feb 2011 19:42:25 +0000

“…, you’re too busy working to pay for machines to save you time so you won’t have to work so hard.”

- “The Tao of Pooh”, P.

the magic number of seven

zhouji — Fri, 14 Jan 2011 16:37:37 +0000

the magic number of seven

人无完人

zhouji — Sun, 19 Dec 2010 01:40:29 +0000

but each of us can do something better than others – it may be very few and very little, but we have it. That is our value.