sum min max average and count

... a simple extension of the Collatz-Wielandt min- max formula for the Perron root The Collatz-Wielandt formulae are two characterizations, in min- max and max -min problem forms, of the spectral radius ... of Corollary and Observation that the set of min- max fair and utility-optimal power and In Figure we illustrate the saddle point property of a min- max fair and utility-optimal power and weight ... which min- max fairness and max -min fairness achieve equal performance Finally we prove that for some class of networks, there exist power allocations, which concurrently achieve min- max fairness and...

Ngày tải lên: 22/06/2014, 22:20

... hàm số y = f(x) xác định tập D * Số M gọi giá trị lớn hàm số y = f(x) D (kí hiệu : M = max f(x) hay M = max y ) hai điều kiện sau thỏa mãn : x ∈D x ∈D ⎧∀ x ∈ D :f(x) ≤ M ⎨ ⎩∃ x1 ∈ D:f(x1 ) = ... n ) - Kết luận : SV Bùi Lê Phạm Mỹ Phương Luận văn tốt nghiệp GVHD: Th S Vương Vĩnh Phát max f(x) = max {f(a), f(b), f(x1 ), f(x ), , f(x n )} • x ∈[a;b] f(x) = {f(a), f(b), f(x1 ), f(x ), ... điểm thuộc đoạn [a; b] ) - Nếu f(x) tăng đoạn [a; b] f(x) = f(a) max f(x) = f(b) x ∈D x ∈D - Nếu f(x) giảm đoạn [a; b] f(x) = f(b) max f(x) = f(a) x ∈D x ∈D Ví dụ : Tìm giá trị lớn nhất, giá trị...

Ngày tải lên: 10/04/2013, 11:16

... 2   ≥    + 1    = 27 ⇒ f = 27 tam giác ABC Bài tập áp dụng bất đẳng thức Cosi: 1) Tìm min, max hàm số: f(x, y, z) = xy z −1 + xz y − + yz x − xyz Trên D = { ( x, y, z ) : x ≥ 3; y ≥ 2; ... ≥ Bài tập áp dụng Bunhia: 1) Cho x, y, z > 0; x + y + z = π Tìm Min biểu thức f(x, y, z) = +tgxtgy + +tgytgz + +tgxtgz 2) Tìm max hàm số: f(x, y) = x + y Trên miền D= {( x , y); x ≥ 0; y ≥ ... x ≤ a k + 1 ⇒ T ≥ ( a n + + a k +1 ) – ( a + + a k ) Dấu “=” ⇔ a k ≤ x ≤ a k +1 Với n = 2k minT = ( a n + + a k +1 ) – ( a + + a k ) a k ≤ x ≤ a k +1 TH2: n = 2k + x −a + x −a n ≥ a n...

Ngày tải lên: 31/05/2013, 00:20

... ta có: - f ( x ) = [ −3;0] max f ( x ) = y Giải : b) Trên đoạn [3;5], ta có −2 y = < 0, ∀x ≠ ( x − 1) [ −3;0] x - / Dựa vào bảng biến thiêng ta có: f ( x) = y/ y [3;5] max f ( x) = PHẠM THÀNH TR ... ) = − a) Trên đoạn D = [ ; 2 6 Vậy: max y = 1; = − D D π b) Trên đoạn D = [ ; 2π ] ta có: π π 3π y ( ) = ; y ( ) = 1; y ( ) = −1; y (2π ) = 2 = 1; = −1 Vậy: max y THPT PHẠM THÀNH TR D UNG D GIÁ ... giá trị lớn hàm số y = f(x) D f(x) ≤ M với x thuộc D tồn x0 thuộc D cho f(x0) = M Ký hiệu: M = max f ( x) D b) Số m gọi giá trị nhỏ hàm số y = f(x) D f(x) ≥ m với x thuộc D tồn x0 m = f ( x)...

Ngày tải lên: 30/06/2013, 01:28

... settled, authorized, and respected somewhere, and wish to put an end to the nomadic life, to the ‘wandering Jew’,— and one should certainly take account of this impulse and tendency, and MAKE ADVANCES ... appearance and good name, and not barter away too cheaply our old reputation as a people of depth for Prussian ‘smartness,’ and Berlin wit and sand It is wise for a people to pose, and LET itself ... consider the highly developed and independently soaring minds as specially qualified for determining and collecting many little common facts, and 237 of 301 Beyond Good and Evil deducing conclusions...

Ngày tải lên: 22/10/2013, 13:20

... Security Risks and Countermeasures December 20, 1999 UNCLASSIFIED Microsoft Office 97 Executable Content Security Risks and Countermeasures (U) Executable Content Technology Team Systems and Network ... Access and examine it The original autoexec macro is renamed “suspect,” and can safely be browsed, along with any VBA modules present Microsoft Office 97 Executable Content Security Risks and Countermeasures ... executing code, assuming the latest patches have not been installed Microsoft Office 97 Executable Content Security Risks and Countermeasures December 20, 1999 UNCLASSIFIED 27 2.4.4 Countermeasures...

Ngày tải lên: 26/10/2013, 23:15

... Systems are complex and the administrator does not have the necessary skills or resources to fix the problem Administrator will create a simple configuration that works In order to maximize your chances ... Windows Unix Windows, Unix, and Linux Has exemplary knowledge of networking net o king and related d a e and elated hardware software Knowledgeable about security areas and related issues In other ... vulnerabilities and designing weaknesses that will open an operating system and its applications to attack or misuse Includes both dynamic study of products and technologies and ongoing assessment...

Ngày tải lên: 26/12/2013, 19:47

... Administrator, user, and guest accounts with proper authorization Background check of employees and proper termination process • Insiders with a criminal background and terminated employees are ... attacks Social Engineering Threats and Defenses Countermeasures for Social engineering Policies and Procedures Impersonating Orkut, Facebook, and MySpace Identity Theft Countermeasures for Identity ... response and solution Module XI Page 1510 Ethical Hacking and Countermeasures v6 Copyright © by EC-Council All Rights Reserved Reproduction is Strictly Prohibited Ethical Hacking and Countermeasures...

Ngày tải lên: 26/12/2013, 20:22

... the user’s account Module XII Page | 1572 Ethical Hacking and Countermeasures v6 Copyright © by EC-Council All Rights Reserved Reproduction is Strictly Prohibited Ethical Hacking and Countermeasures ... towards these fake online banks and give their bank account information for transferring balance to the new account Module XII Page | 1577 Ethical Hacking and Countermeasures v6 Copyright © by ... constantly and automatically Module XII Page | 1591 Ethical Hacking and Countermeasures v6 Copyright © by EC-Council All Rights Reserved Reproduction is Strictly Prohibited Ethical Hacking and Countermeasures...

Ngày tải lên: 26/12/2013, 20:23

... Prohibited Ethical Hacking and Countermeasures v6 Hacking Email Accounts Exam 312-50 Certified Ethical Hacker Summary Username and password can be revealed if it is stored in cookie and is not encrypted ... Ethical Hacking and Countermeasures v6 Copyright © by EC-Council All Rights Reserved Reproduction is Strictly Prohibited Ethical Hacking and Countermeasures v6 Hacking Email Accounts Exam 312-50 ... email accounts has become a serious threat because peoplestore their private and confidential information and sometimes business data in their email account With the access of user email account,...

Ngày tải lên: 26/12/2013, 20:23

... Understanding Session Hijacking Understanding the flow of message packets over the k h Internet by dissecting the TCP stack Understanding the security issues involved in the use of IPv4 standard ... Spoofing and Hijacking Steps to Conduct a Session Hijacking Attack Types of S i Hijacking f Session ij ki Performing Sequence Number Prediction TCP/IP Hijacking Session Hijacking Tools Countermeasures ... attack, an attacker finds an active session and takes over Passive Passive • With passive attack, an attacker hijacks a session, but sits back, and watches and records all the traffic that is being...

Ngày tải lên: 26/12/2013, 20:27

... easily craft and administer effective cache control policies for every website resource through a single rules file, dramatically speeding up sites, reducing bandwidth consumption, and eliminating ... a better user experience and increased visitor retention • Eliminates unnecessary chatter and bandwidth on server and network due to excessive conditional GET requests and 304 responses • Saves ... fit • Protects against known and unknown HTTP and HTTPS attacks and exploits with real-time alerts and countermeasures • Goes b beyond the li i d pattern matching and policy-based d h limited...

Ngày tải lên: 26/12/2013, 20:28

... measures and l it d obtain direct access to the valuable data SQL Injection attacks can often be executed from the address bar, from within application fields, and through queries and searches Countermeasure ... Prohibited Countermeasures Validate input length in forms Check bounds and maintain extra care when using loops to copy data StackGuard and StackShield for Linux are tools to defend programs and systems ... theft of service, account hijacking, information disclosure, website defacement, and so on Countermeasures: • Thoroughly inspect all traffic • Block or translate Unicode and UTF-8 encoding to...

Ngày tải lên: 26/12/2013, 20:29

... Ron runs an FTP brute force tool and cracks the admin password for the website With the cracked admin password h l b it th k d d i d he logs on t th website and to the b it d changes the Index.htm ... determining th i i the user’s identity In private and public computer networks, authentication is commonly done through the use of login IDs and passwords Knowledge of the password is assumed ... unique and immutable fingerprints A fingerprint is made of a series of ridges and furrows on the surface of the finger The uniqueness of a fingerprint can be determined by the pattern of ridges and...

Ngày tải lên: 26/12/2013, 20:31

... Technologies Countermeasures Module XXI Page | 2261 Ethical Hacking and Countermeasures v6 Copyright © by EC-Council All Rights Reserved Reproduction is Strictly Prohibited Ethical Hacking and Countermeasures ... employees and visitors – 7% Module XXI Page | 2263 Ethical Hacking and Countermeasures v6 Copyright © by EC-Council All Rights Reserved Reproduction is Strictly Prohibited Ethical Hacking and Countermeasures ... Prohibited Ethical Hacking and Countermeasures v6 Physical Security o Exam 312-50 Certified Ethical Hacker Lightning and Thunder Lightning and Thunder cause a sudden power surge and voltage fluctuations...

Ngày tải lên: 26/12/2013, 20:36

... performing real time traffic analysis real-time and packet logging on IP networks It can perform protocol analysis and content searching/matching, and can be used to detect a variety of attacks and ... were hacked and sensitive information of thousands of customers was stolen The stolen information consisted of the details about the customers’ bank account numbers, credit card numbers, and their ... host-based t CSA software protects the server and desktop computing systems by identifying threats and preventing malicious behavior It mitigates new and evolving threats without requiring reconfigurations...

Ngày tải lên: 26/12/2013, 20:47

... and stack memory Use of uninitialized variables and objects Array and string bounds errors on heap and stack Use of dangling, NULL, and uninitialized pointers All types of memory allocation and ... analysis and error detection tool for C and C++ that automatically identifies a variety of difficult to track difficult-to-track programming and memory-access errors, along with potential defects and ... of STL containers, and related memory errors Compile-time Compile time checks for type and size related errors typesize-related Runtime tracing of function calls GUI and command line interface...

Ngày tải lên: 26/12/2013, 20:47