Theorem: For any quadrilateral ABCD, the midpoint of the diagonal line AC and BD is M, N, AB, and CD. verify that the area of the triangle RMN is 1/4 of the area of the Quadrilateral ABCD.
Next we will use the C language to verify the correctness of this theorem. Because the computer's accuracy is limited, we use double precision to store the length of each side and the variables in the calculation process, because the double value intercepts the actual length, especially when the length is the
**/Private function getzz_geometry (clickarray: array, jishu: Boolean): Array{// First define the coordinate of the center axis curveVaR curvepoints: array = new array ();// Array LengthVaR array_length: Number = clickarray. length;If (jishu){Clogger.logger.info ("the number of clicks is an odd number, and the value is greater than or equal to three. It is:" + clickarray. Length + ");For (var I: Int = 0; I {For (var j: Number = 0; j {If (I! = 0 J = 0)Continue;VaR pos_x: Number = math.
Download English Original: http://download.csdn.net/download/vinsuan1993/9963770
Ppcoin:peer-to-peer crypto-currency with Proof-of-stake
PPC: A point-to-point interest proof electronic password currencySunny King, Scott Nadal(Sunnyking9999@gmail.com, scott.nadal@gmail.com)
August 19th, 2012
Summary:PPC is a derivative of the BTC from the Nakamoto created by the electronic password currency, to the proof of rights (Proof of Stake, hereinafter referred to as POS) to replace the workload certifi
. Reasons:
After a long time, I finally found that the root cause of the problem was that two different JavaScript libraries were referenced in the webpage, and both libraries modified some methods of the original JavaScript Object, as a result, a circular reference occurs. Specifically, this is the case:
The webpage H references JS libraries A and B, and the math. Pow method is modified in A and B, as shown in:
If you modify the math.
")) val textflattened = Textmapped.flatten//List ("A", "B", "C", "D", "E", "F") val textflatmapped = Text.flatmap (_.split (","). ToList)//List ("A", "B", "C", "D", "E", "F") 3.reduce REDUCE[A1;: A] (OP: (A1, A1) ⇒a1): A1 Define a transform F, f to synthesize two elements of a list, iterate through the list, and eventually merge the list into a single element example list sum val nums = List (all in a) val sum1 = Nums.reduce ((a, b) = a+b)//6 val sum2 = Nums.reduce (_+_)//6
there are several cyclic sections in each rotation permutation, such as 1,3,5 is a circular section, then rotated once, 1th to 3rd, and 3rd to 5th, obviously the color of a loop section must be the same. There are m color choices, the question is converted into how many follow links. For rotations there is obviously gcd (i,n). So as long as I can enumerate, this is the Polya theorem.And in the flip, if n is odd, there is obviously an item is fixed, the other 22 symmetry, color is the same. N/2+
list to the left
Example
Val nums = List (2.0,2.0,3.0)
val resultleftreduce = Nums.reduceleft (MATH.POW) //= POW (POW (2.0,2.0), 3.0) = 64.0
val resultrightreduce = nums.reduceright (MATH.POW)//= POW (2.0, pow (2.0,3.0)) = 256.0
5.fold,foldleft,foldright
FOLD:FOLD[A1: A] (Z:A1) (OP: (A1, A1) ⇒a1): A1 with the init
In the previous article we talked about the POW consensus mechanism, this one we will share another consensus mechanism, POS consensus mechanism.POS Full name is proof of Stake, Chinese translation as proof of rights. This article will be a comparison between POS and POW to help you deepen your understanding.The origin of Pos Pos first appeared in the White paper of Sunny King, the founder of the dot-coin,
Solution:
Chinese
ORIGINAL VERSION
Chinese Translation of junk eggs, porn
Verify that:
FIB (0) was established, FIB (1) was established, FIB (2) was established, assuming fib (n) was established, then (the two Latin letters were replaced by x y ):
X = (1 + SQRT (5)/2, y = (1-sqrt (5)/2
FIB (n + 1) = fib (n) + fib (n-1) =... = (x + 1) * POW (x, n-1)-(Y + 1) * POW (Y, n-1)/SQRT (5)
Because x + 1
Yesterday, bitcoin.org in charge of Cobra issued an open letter angry godless bit continent, require Bitcoin users to modify the POW algorithm, using Pow+pos hybrid system, and select those convenient to build Asics algorithm.Then, the bit Continental CEO Wu Bogey Cold in the Twitter response said "too cool." When you do this, Bitcoin's share in the cryptocurrency market will probably fall below 10%. Good l
the specular is the Schlick method proposed by the Fresnel determined by glossiness gloss: RF0 is the reflection color, also roughness roughness Occlusion Items Use the method proposed by Schlick-smith in energy conservation considerations, diffuse reflection is less specular reflection, and vice versa So: effects are as follows: looks like a polished marble effect. The main code is as follows: Insert code: #define PIE 3.1415926535float4 Frag (v2f i): color{float3
optimal value output public double [] getos () {return OS;} // function, initial point, direction vector public GSM (func sample, double [] X, double [] e) {// For (INT I = 0; I
The above algorithm file contains the function equation. When golden splitting, one-dimensional search is used to determine the "High and Low" interval.
Function Equation func. Java, the extension method extm. java.
Func. Java:
Package ODM. method; public class func {private int N; // n-dimension private double [] Le
# Include
Using namespace STD;
// The first method exploits the loopBool makedemo-( const Int M, Int POW) // POW indicates how many power m is 2{Int I = 2;Int S = 1;Pow = 0;If (M If (M = 0) return true;Do{S * = I;Pow ++;} While (S If (S = m) return true;Else{Pow = 0;R
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