Math.NET開源數學庫
C#實現
具體功能:
- A linear algebra package, see MathNet.Numerics.LinearAlgebra.
- A sparse linear algebra package, see MathNet.Numerics.LinearAlgebra.Sparse.
- Non-uniform random generators, see MathNet.Numerics.Generators.
- Distribution fonctions, see MathNet.Numerics.Distributions.
- Statistical accumulator, see MathNet.Numerics.Statistics.
- Fourier transformations, see MathNet.Numerics.Transformations.
- Miscellaneous utilies (polynomials, rationals, collections).
Procedure TSPSA:
begin
init-of-T { T為初始溫度}
S={1，……，n} {S為初始值}
termination=false
while termination=false
begin
for i=1 to L do
begin
generate(S′form S) { 從當前回路S產生新回路S′}
Δt:=f(S′))-f(S) {f(S)為路徑總長}
IF(Δt<0) OR (EXP(-Δt/T)>Random-of-[0,1])
S=S′
IF the-halt-condition-is-TRUE THEN
termination=true
End
T_lower
End
End
Secure Programming Cookbook for C and C++ is an important new resource for developers serious about writing secure code for Unix(including Linux) and Windows environments. This essential code companion covers a wide range of topics, including safe initialization, access control, input validation, symmetric and public key cryptography, cryptographic hashes and MACs, authentication and key exchange, PKI, random numbers, and anti-tampering.
The EM Wave MATLAB Library consists of a collection of MATLAB programs related to electromagnetic wave scattering with special emphasis on wave scattering by random rough surfaces and discrete random media.
使用到的參數跟談到彈性網絡的那一章里頭所講的是一樣的， ke 則是終止條件。如果 step 被打勾，則程式在每一步之間會暫停 100毫秒（或其他使用者輸入的數值）。如果 Random 被打勾，則程式會以系統時間作為亂數產生器的種子數，否則，就以使用者輸入的數（ Random 右邊那一格）為種子數。
你可以利用 load 來載入推銷員問題檔與其最佳解，如此便可比較彈性網絡所找出來的解與最佳解差了多少。
Central, Radius, and Error 這三個參數的前兩個，只影響彈性網絡的起使位置和大小，對求解沒有影響。第三個參數代表城市與網絡點之間的容忍距離，也就是說，如果某城市與某網絡點之間的距離，小于容忍距離，那就把這個城市當成是被該網絡點所拜訪。
按下小 w按鈕會將目前的結果與參數值寫到“en.out”這個檔案。使得我們可以很方便地來比較不同參數的效果。
This code was used for making the practical measurements in section 2.3 of my thesis. This Matlab code allows an OFDM signal to be generated based on an input data file. The data can be random data, a grey scale image, a wave file, or any type of file. The generated OFDM signal is stored as a windows wave file, allowing it to be viewed, listened to and manipulated in other programs. The modified wave file can then be decoded by the receiver software to extract the original data. This code was developed for the experiments that I performed in my honours thesis, and thus has not been fully debugged.
This is the original code developed for the thesis and so has several problems with it. The BER performance given by the simulations is infact Symbol Error Rate.
Distribution generator
Here is a simple generator which can build some distributions with given properties.
Distributions generator (compile with -lm)
Typical use might be:
./distributions -u -m 1 -M 10 -n 100 -s 500
Generates a distribution of 100 uniform random numbers between 1 and 10, such that the sum of numbers is 500.
./distributions -p -2.2 -m 1 -M 100 -n 200 -s 500
Idem with 200 numbers between 1 and 100 following a power law with exponent -
C# BigInteger class. BigInteger.cs is a csharp program. It is the BIgInteger class. It has methods: abs() , FermatLittleTest(int confidence) ,gcd(BigInteger bi) , genCoPrime(int bits, Random rand) , genPseudoPrime(int bits, int confidence, Random rand) , genRandomBits(int bits, Random rand) , isProbablePrime(int confidence) , isProbablePrime() , Jacobi(BigInteger a, BigInteger b) , LucasSequence(BigInteger P, BigInteger Q, BigInteger k, BigInteger n) ,max(BigInteger bi) , min(BigInteger bi) , modInverse(BigInteger modulus) , RabinMillerTest(int confidence) ,
