词汇：log
vi. 伐木
相关场景
[Kay gestures to two small, bony CREATURES with eight arms each and a single eye growing out of a central stalk in their heads. They turn around and wave two or three arms each. The screen displays a map of the world on which thousands of tiny lights blink in all parts of the globe, log lines of data flashing next to them.] This map shows the location of every registered alien on earth at any given time. Some of them we keep under constant surveillance. He hits a button on the console and the map is replaced by ten big screens. Everyone on these screens is an alien. Some of them under constant surveillance. In public, they're as normal as you are, but in private... well, you'll get the idea.
>> Men In Black Movie 1997 Script
>> Men In Black Movie 1997 Script
Natural logarithm. For example: Log(high/low) uses natural logarithm of high/low ratio as stock weights.
>> Operators
>> Operators
自然对数。例如：Log（高/低）使用高/低比率的自然对数作为股票权重。
Arithmetic Operators: add, subtract, multiply, divide, power; log(x) Natural logarithm.
>> worldquantbrain_4_program
>> worldquantbrain_4_program
Alpha signals can vary depending on position allocation. Operators like rank, signed_power, and log change how Alpha distributes positions. Generally, distributions with more extreme values tend to have higher volatility and returns. Be careful of overfitting risk when positions are too concentrated in few instruments.
>> worldquantbrain_2
>> worldquantbrain_2
阿尔法信号可能因位置分配而异。rank、signed_power和log等运算符会改变Alpha分配位置的方式。一般来说，具有更极值的分布往往具有更高的波动性和回报率。当头寸过于集中在少数仪器中时，要小心过度拟合的风险。
TWO CHARGING DIREHORSES have a heavy log slung between them like a battering ram. At a full gallop they hit an ampsuit, FLIPPING IT onto its back with a blown-out canopy. Victory is short lived as the two riders are cut down.
>> 阿凡达 Avatar Movie Script
>> 阿凡达 Avatar Movie Script
Jake shares a look of alarm with Grace as Quaritch selects a NEW CLIP on the main monitor -- TIGHT ON MONITOR -- VIDEO-LOG IMAGE of Jake, looking haggard and borderline deranged, rambling in a late-night monologue.
>> 阿凡达 Avatar Movie Script
>> 阿凡达 Avatar Movie Script
JAKE SITS in front of the video log camera, late at night. It is many log entries later. He has lost a lot of weight. He looks like a junkie watching a test pattern.
>> 阿凡达 Avatar Movie Script
>> 阿凡达 Avatar Movie Script
VIDEO-LOG IMAGE -- HUMAN JAKE talks into the lens. He's changing -- un-shaven, cheeks hollow. Pale.
>> 阿凡达 Avatar Movie Script
>> 阿凡达 Avatar Movie Script
INT. SHACK - NIGHT/EXT STEREO VIDEO-LOG IMAGE -- Jake has just switched on the camera. He looks tired.
>> 阿凡达 Avatar Movie Script
>> 阿凡达 Avatar Movie Script
the noise, smokey Inn. It is dimly lit, cheifly from a blazing log fire...and crowded with a mixture of BIG FOLK, LOCAL HOBBITS, and a couple of dwarfs. Frodo, Sam, Merry and Pippin are sitting at a table against the wall... clearly trying to remain Quiet and inconspicuous... Sam can't help himself...he keeps casting nervous glances around.
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
FRODO Beads of sweat gather on his brow. The ringwraith suddenly slides off his horse, leaning over the mossy log, peering suspiciously into the woods.
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
Sam grabs Merry and Pippin as the Hobbits quickly scramble down the bank, hiding under a mossy log. THE SOUND OF HOOVES is close... A sinister MOUNTED RINGWRATH steps into view...hooded and faceless, mounted on a huge snarling black horse with insane eyes ! Frodo freezes in terror. The RINGWRAITH pauses right beside their hiding place...he sits very still with his head bowed, listening. From inside the hood comes a sniffing noise as if he is trying to catch an elusive scent; his head turning from side to side.
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
INTERCUT WITH; SHOTS OF FRODO RUNNING... CAREERING DOWN A HILL. . .JUMPING OVER LOGS... DODGING TREE BRANCHES.
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
>> 指环王1：护戒使者 The Lord of the Rings: The Fellowship of the Ring Movie Script
Array#include? 的时间复杂度是O(n),数量变多，时间就边长。Hash#include? O(log n); Hash[permissions.map{|p|} [p,true]]; require('set'); @permissions= Set.new(permissions) ; Set是一个无序容器。有序容器SortedSet类。如果不需要顺序，又存在很多条记录要判断是否Include?(x),那么Set是最好的选择。
>> Effective Ruby
>> Effective Ruby
SO now, we're created that user in production using our Kamal consol! I can log in with that user/pasword.
>> Rails 8.0.1 You are in good company
>> Rails 8.0.1 You are in good company
Now, if we hop back onto local host, and we try to log in with first the wrong password. we're actually gonna see something here , when I added the authentication, it added another gem, it added bcrypt, that's what we're using to keep password secure, so we have to hop back in here and restart our development server!
>> Rails 8.0.1 You are in good company
>> Rails 8.0.1 You are in good company
If we hop to the session, you can see it just is very basic Rails active record. Now we're gonna set up a default user that the systems should have as we're working with it to allow us to log in since we don't have that signup flow.
>> Rails 8.0.1 You are in good company
>> Rails 8.0.1 You are in good company
Everything else by default will be behind the authentication lock! There's also a rate limit to make sure that people don't bombard you with attempts to log into users do not have access to.
>> Rails 8.0.1 You are in good company
>> Rails 8.0.1 You are in good company