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Computation

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Added: May 10, 2013 | Visits: 223

Fast expression evaluator This code provides you a pluggable library for fast computation of mathematical expressions in C programs with x86 JIT compiler.



Platforms: Windows, Mac, *nix, C/C++, BSD Solaris

License: Freeware Download (27): Fast expression evaluator Download

Added: July 31, 2013 | Visits: 275

Empirical Mode Decomposition The Empirical Mode Decomposition is a technique to decompose a given signal into a set of elemental signals called Intrinsic Mode Functions. The Empirical Mode Decomposition is the base of the so-called d-deDUHilbert-Huang Transformd-deDt that comprises also a Hilbert Spectral Analysis and an...





Platforms: Matlab

License: Freeware Size: 10 KB Download (21): Empirical Mode Decomposition Download

Added: June 14, 2013 | Visits: 199

Steepest Descent Algorithm This is a small example code for "Steepest Descent Algorithm". It implements steepest descent Algorithm with optimum step size computation at each step. The code uses a 2x2 correlation matrix and solves the Normal equation for Weiner filter iteratively.Reference:Adaptive Filter Theory 3rd...


Platforms: Matlab

License: Freeware Size: 10 KB Download (18): Steepest Descent Algorithm Download

Added: March 25, 2013 | Visits: 199

Impact of quantization on performance Computes BER v EbNo curve for convolutional encoding / soft decision Viterbi decoding scheme assuming BPSK.Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve.The computation uses a quasi-analytic (QA) technique that relies on the estimation (approximate one)...


Platforms: Matlab

License: Freeware Size: 10 KB Download (19): Impact of quantization on performance Download

Added: June 26, 2013 | Visits: 239

Computation of Stabilizing PI Controllers PITAN(NUM,DEN,W) plots the stability boundary locus L(KP,KI,W) in the (KP,KI)-plane for an LTI system with transfer function defined by its NUM, DEN coefficients and driven by a PI controller with transfer function, C(s)=kp+(ki/s). Frequency (W) gridding become important.The method works for open...


Platforms: Matlab

License: Freeware Size: 10 KB Download (18): Computation of Stabilizing PI Controllers Download

Added: May 21, 2013 | Visits: 200

domino tiles Create a random matrix of a non-intercepting snake, like the game ("worm" or "snake"). Also described by filling a chessboard with dominos, except now the board can be rectangular, or any arbitrary shape (by changing the boarders).Uses an infinite loop to enumerate possibilities. There are a...


Platforms: Matlab

License: Freeware Size: 10 KB Download (19): domino tiles Download

Added: May 03, 2013 | Visits: 219

Generalized Newton Raphson Method Two methods are provided -1) an automatic updation method which can be effectively used outside of a loop since it writes out a newton-raphson computation file from the parameters received.2) a manual file generation method; effective when the resulting file has to be called repeatedly in a loop.


Platforms: Matlab

License: Freeware Size: 10 KB Download (18): Generalized Newton Raphson Method Download

Added: September 12, 2013 | Visits: 217

Tutorial: C mex matrix demo This short tutorial illustrates basic numerical matrix computation in C. I encourage any comments from expirienced mex programmers for style improvement.This is a nice little function to demonstrate how you can interface MATLAB and C style matricies. There is some example code included showing...


Platforms: Matlab

License: Freeware Size: 133.12 KB Download (19): Tutorial: C mex matrix demo Download

Residue Curve Map for the mixture MTBE/Methanol/isobutene/n-butane at P=1 atm Computation of the residue curve map for the MTBE chemistry is presented in the program. The equilibrium, taking place in the liquid phase, transforms methanol and isobutene into MTBE with n-butane being an inert component. Thermodynamic data can be found in the excellent paper by Niang and...


Platforms: Matlab


Added: August 09, 2013 | Visits: 213

Approximate Lowner Ellipsoid This program implements the iterative algorithm in Khachiyan's paper "Rounding of Polytopes in the Real Number Model of Computation" to approximate the minimum volume ellipsoid circumscribing a non-degenerate set of points in arbitrary dimensions.It is basically like Nima Moshtagh's MinVolEllipse...


Platforms: Matlab

License: Freeware Size: 10 KB Download (18): Approximate Lowner Ellipsoid Download

Added: August 13, 2013 | Visits: 212

Intoduction to the gravity field of earth This file includes two m-files. The ASWERS12345 calculates GRS80 free air anomalies,Eigen-CG03C and model of remaining topography reduction,empirical and analytic covariance functions,normal gravity (GRS67,GRS80) using Somigliana formula. The other one fftstokes.m is a geoid computation using...


Platforms: Matlab

License: Freeware Size: 2.04 MB Download (18): Intoduction to the gravity field of earth Download

Added: September 07, 2013 | Visits: 167

MATLAB For Java Programmers MATLABdlT« is a high-level technical computing language and interactive environment for algorithm development, data analysis, data visualization, and numeric computation. During this webinar, we will show you how to use MATLAB together with Java to accelerate the development and debugging of...


Platforms: Matlab

License: Freeware Size: 11.34 MB Download (18): MATLAB For Java Programmers Download

Cumulative Distribution Function of CDO Loan Portfolio Loss in the Gaussian Factor Model The code is explained in the article: Okunev, Pavel, "Fast Computation of the Economic Capital, the Value at Risk and the Greeks of a Loan Portfolio in the Gaussian Factor Model" (July 1, 2005). http://ssrn.com/abstract=758505 This implements one factor Gaussian model. [pd]=pdgs(L,w,p,LL,N) L =...


Platforms: Matlab


Fast Computation of the Expected Tranche Loss of CDO Credit Portfolio The code is explained in the article P. Okunev, "A Fast Algorithm for Computing Expected Loan Portfolio Tranche Loss in the Gaussian Factor Model", LBNL-57676, 2005.http://www-library.lbl.gov/docs/LBNL/576/7.../LBNL-57676.pdfFuther refinments of this algorithm are descibed in Okunev, Pavel,...


Platforms: Matlab


Added: August 17, 2013 | Visits: 124

PolyBoRi The core of PolyBoRi is a C++ library, which provides high-level data types for Boolean polynomials and monomials, exponent vectors, as well as for the underlying polynomial rings and subsets of the powerset of the Boolean variables. As a unique approach, binary decision diagrams are used as...


Platforms: Mac

License: Freeware Size: 2.23 MB Download (16): PolyBoRi Download

Added: December 01, 2013 | Visits: 198

jCompoundMapper * jCompoundMapper provides popular fingerprinting algorithms for chemical graphs such as depth-first search fingerprints, shortest-path fingerprints, extended connectivity fingerprints, autocorrelation fingerprints (e.g. CATS2D), radial fingerprints (e.g. Molprint2D), geometrical Molprint, atom...


Platforms: Mac

License: Freeware Size: 10.12 MB Download (16): jCompoundMapper Download

Added: September 20, 2013 | Visits: 228

Breaking AES Encryption Model The Breaking the AES Cipher Model encrypts a plaintext message using AES encryption and attempts to break this encryption using a plaintext attack. The attacker (Eve) obtains both the plaintext and the cyphered text for a message between two people, Alice and Bob, and systematically encrypts the...


Platforms: Mac

License: Freeware Size: 911.36 KB Download (18): Breaking AES Encryption Model Download

Added: July 23, 2013 | Visits: 154

fulguro Fulgoro is library for image processing with real-time constraints. It use SIMD optimizations when available and give the opportunity to use automatic smart threads to speed-up processing. Python or Ruby extension could be used to easily "script" applications while preserving the computation speed


Platforms: *nix

License: Freeware Size: 6.51 MB Download (16): fulguro Download

Added: August 18, 2013 | Visits: 171

Scilab for Linux Scilab is an open source software which includes hundreds of mathematical functions. It has a high level programming language allowing access to advanced data structures, 2-D and 3-D graphical functions. A large number of functionalities is included in Scilab: control, simulation, optimization,...


Platforms: *nix, Linux Open Source

License: Freeware Size: 140 MB Download (18): Scilab for Linux Download

Added: September 02, 2013 | Visits: 189

GluCat: Clifford algebra templates GluCat is a generic library of C++ templates which implement universal Clifford algebras over the field of real numbers. Features . Numerical computation with real Clifford algebras . Base algebra dimensions limited only by word size


Platforms: *nix

License: Freeware Size: 2.72 MB Download (16): GluCat: Clifford algebra templates Download

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