how to calculate downtime

online query of relevant data, calculate their own altitude usually there are two methods, one is through the GPS Global Positioning system, the second is to measure the atmospheric pressure, and then calculate the altitude according to the barometric value.Using GPS Global Positioning System to get an elevation simple is simple, as long as get to Android system to provide Loctionmanager service, set provi

How to calculate the subnet ID of an IP address correctly?From:How to calculate the correct subnet for a interface (document ID 1059759.1)Suitable for:Oracle database-enterprise edition-version 10.2.0.1 and laterInformation in this document applies to any platform.Goal:The subnet ID of an IP address is calculated correctly, and the subnet ID is for oifcfg.Oifcfg requires you to Pulic and Cluster_interconnec

Php's simple method for calculating the circumference ratio is original, fontcolor. The simple implementation method for php to calculate the circumference rate is original. fontcolor this article describes the simple implementation method for php to calculate the circumference rate. For your reference, I will share with you the following details: the simple implementation method of php to

Welcome to the Linux community forum, and interact with 2 million technical staff to enter the number of days for calculation of the difference between the given two dates using php: the calculation method is not just described below, but some of the more common methods: to calculate the difference between And :? Php $ startdatestrtotime ("2009-12-09"); $ enddatestrtoti Welcome to the Linux community forum, interact with 2 million technical staff> ent

In php, the string similarity similar_text function and the similarity levenshtein function are described in detail. next we will introduce in detail the string similarity introduction similar_text-calculate the similarity between two strings. Int similar_text (string $ first, string $ second [, float $ percent]) $ First is required. Specifies the first string to be compared. $ Second is required. Specifies the second string to be compared. $ Percent

Php implements class instances used to calculate the execution time, and php instances. Php implementation is a class instance used to calculate the execution time. This article describes the php implementation class used to calculate the execution time. Share it with you for your reference. Details: with this php implementation class instance for calculating exe

Namespace: System. data Assembly: System. data (in System. data. dll) syntax VBC # C ++ F # JScript in a color-differentiated format copy to clipboard print Public Property Expression As String Get SetPublic Property Expression As StringGetSetpublic Expression string Expression {get; set;} public string Expression {get; set;} public: property String ^ Expression {String ^ get (); void set (String ^ value);} public: property String ^ Expression {String ^ get (); void set (String ^ Value);} member

.x) EQ (P1.Y, P2.y));}BOOL operator!=(Point P1, point p2) {return(NEQ (p1.x, p2.x) | |NEQ (P1.Y, P2.y));}BOOL operator(Point P1, point p2) {if(NEQ (p1.x, p2.x)) {return(P1.x p2.x); } Else { return(P1.y p2.y); }}pointoperator+(Point P1, point p2) {returnPoint (p1.x + p2.x, P1.y +p2.y);} Pointoperator-(Point P1, point p2) {returnPoint (p1.x-p2.x, P1.y-p2.y);}Double operator* (Point P1, point p2)//Calculate fork Multiply P1xp2{ return(p1.x * p2

points, north latitude 39 degrees 54 points. Vessels sailing in the sea, as long as the longitude of the location is measured, you can determine the position and direction of the ship in the ocean. Latitude has a total of 90 degrees. The equator is 0 degrees, aligned to the Poles, the smaller the circle,The greater the degree.The horizontal line is latitude, and the vertical line is longitude.Of course, we can calculate the equation of four yuan and

the latitude and longitude of Beijing? We can easily find out from the map is 116 degrees east longitude 24 points, north latitude 39 degrees 54 points. Ships sailing in the sea can determine the position and direction of the ship as long as the longitude of the location is measured. Latitude has a total of 90 degrees. The equator is 0 degrees, aligned to the Poles, the smaller the circle, the greater the degree. The horizontal line is latitude, and the vertical line is longitude. Of course, we

Calculates two string similarity using PHP similar text, Similartext In web development, we often use PHP similar text to calculate two string similarity; The use of 1,similar_text If I want to calculate the similarity between "LY89CN" and "ly89", there are two ways to express it. Copy the Code code as follows:echo similar_text (' ly89cn ', ' ly89 '); So output 4 because they have 4 characters equal Copy t

From http://www.cppblog.com/aurain/archive/2008/10/08/63480.html The euclidean algorithm, also known as the moving phase division, is used to calculate the maximum approximate number of two integers A and B. The computation principle depends on the following theorem:Theorem: gcd (a, B) = gcd (B, A mod B) The algorithm is described in C ++ as follows:Int gcd (int m, int N){If (M = 0)Return N;If (n = 0)Return m;If (m {Int TMP = m;M = N;N = TMP;}While (n

addition, subtraction, multiplication, division operator to calculate the sum of two numbers 2. Do not use the addition, subtraction, multiplication, division operator to calculate a = B * 3 First, these two questions are actually very relevant and need to be calculated. A = B * 3 is calculated as a = B * 2 + B, that is, a = B Therefore, as long as the sum of the two digits is calculated without the addi

>>> and >> are bitwise operators, only valid for integral types (not for floating-point types).When the integer type (low+high) >>1 can replace (Low+high)/2.>>> is the unsigned right-shift operator. If Low+high is a positive integer, these three operations are equivalent.Because of compiler optimizations, their efficiency should be the same (if there is no compiler optimization, the shift operation is faster).Use >>> generally have a special purposeAs for the difference between >>> and >>, it is