Sigma Lambda Phi Confraternity
The School Management Software SIGMA has been developed by a leading software development company, SUNTECH Information System that has proven track record in software development for diverse needs.
Because of its remarkably comprehensive features that are user friendly and instrumental in...
Platforms: Windows
License: Shareware | Cost: $0.00 USD | Size: 60.52 MB | Download (63): School Management Pro Download |
A user-friendly mathematical plotter. Its main purpose is displaying 2D/3D functions, defined in rectangular, polar and cylindrical coordinates, relations between variables, parametric curves/surfaces and vector fields. It is based on SDL and OpenGL
Platforms: Mac, BSD, Linux
License: Freeware | Size: 256.91 KB | Download (44): MeTA->phi Download |
Moop (Mud, Object-Oriented, Pythonic) is a MOO written entirely in Python, with a Lambda-MOO-based syntax and using Python as its object scripting language.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 883.73 KB | Download (46): Moop Download |
An interpreter of lambda calculus.It shows reduction process of lambda terms.Several evaluation strategies are supported.Output format can be selected from LaTex, plain text.
Platforms: Windows, Mac, Solaris, Linux
License: Freeware | Size: 51.81 KB | Download (48): PetitLambda Download |
This is a discrete event model that has been developed to computationally simulate the many interactions that occur between co-inhabiting populations of bacteriophage lambda and bacteria. Model qualifications are under review for scientific publication.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 1.37 MB | Download (44): Phage Therapy Simulation-Discrete Events Download |
This toolbox includes a complete set of blocks implemented in the Simulink environment, which allows designers to perform time-domain behavioral simulations of switched-capacitor sigma-delta modulators.The proposed set of blocks takes into account most of the SC sigma-delta modulator...
Platforms: Matlab
License: Freeware | Size: 266.24 KB | Download (41): SD Toolbox Download |
This function calculates the probability under the normal distribution curve, plots the graph and the area calculated.Normaldistribution calculating the area under a normal distribution curve from -ve infinity upto point x. Input: x : point on the normal distribution curve mean : mean of the...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (51): probability distribution function (normal distribution) Download |
[psi gopt] = dfdesign_w_lmi(phi, w, d, n);DFDESIGN_W_LMI computes the H-infinity optimal inverse FIR filter of phi(z).The resulting filter minimizes the H-infinity norm of the error system E_w(z) = [z^(-d) - psi(z)phi(z)]w(z).The LMI method based on KYP lemma is used in this function.[INPUT]phi:...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (51): H-infinity sub-optimal causal FIR inverse filter via LMI Download |
This package has solvers for constrained and unconstrained L1 minimization, which is useful for compressed sensing. u = COORDL1BREG(A,f,lambda) solves the minimization problem min_u ||u||_1 subject to A*u = fwhere A is an MxN matrix and f is a vector of length M. Input lambda is a positive...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): Coordinate descent for Compressed Sensing Download |
[MU, SIGMA, D] = TRUNCLOGNORMEST(DATA) returns the estimated parameters of the lognormal distribution, with unknown left truncation, using the sample data of percent of observations greater than observed quantities.DATA is assumed to be nx2 where the first column is a set of known values, and the...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): Truncated Lognormal Estimation Download |
Phi = keplerSTM(x0,dt,mu) will return the state transition matrix Phi for a set of objects described by initial positions and velocities (x0) with gravitational parameters mu, propogated along Keplerian orbits for time dt. The positions and velocities at time dt is then given by Phi*x0. x0 must...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): Keplerian State Transition Matrix Download |
Free Split and Merge Expectation-Maximization algorithm for Multivariate Gaussian Mixtures. This algorithm is suitable to estimate mixture parameters and the number of conpounds Usage ------- [logl , M , S , P] = fsmem_mvgm(Z , [M0] , [S0] , [P0] , [option]); Inputs ------- Z Measurements (d x N)...
Platforms: Matlab
License: Freeware | Size: 215.04 KB | Download (43): Free Split and Merge Expectation Maximization for MultiVariate Gaussian Mixture Download |
A few days ago I was in need of uniformly random points generation on the surface of sphere. I suddenly discovered that common parametrization with 2 angles is useless, it gathers too many points in the poles. At MathWorld you can find the complete demonstration, here the main lines:To pick a...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (44): RANDSPHERE: RANDOM POINTS ON THE SURFACE OF AN nD SPHERE Download |
This function segments (clusters) an image into object classes, and estimates and corrects for slow varying illumination artifacts. Estimates and corrects for bias field in 3D MRI, streak artifacts in CT, and illumination artifacts in color photos.It's an implementation of the paper of M.N. Ahmed...
Platforms: Matlab
License: Freeware | Size: 133.12 KB | Download (41): Bias Field Corrected Fuzzy C-Means Download |
With this function, you can get the value of L (wavelength), k (wave number), sigma(angular frequency), using different solutions of the dispersion relationship.Inputs: h = deep water (m) T = wave period (s)Outputs: kr = wave number with Newton-Rhapson (1/m) Lr = wavelength with Newton-Rhapson...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (47): Dispersion relationship for water waves Download |
This simulation was generated to compare the MASH 111 SDM with other types of SDMs. This file outputs the average fraction to compare with the one specified as an input, and plots the noise. The Multi-feedback SDM which this was compared to is submitted in a separate posting.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (40): Basic MASH 111 Sigma Delta Simulation Download |
This file provides implementations of the composite parameterization of the unitary group U(d) and special unitary group SU(d) of arbitrary dimension d.>> UC.mFor an arbitrary dxd real matrix 'lambda' the function UC(lambda) returns a unitary matrix of dimension dxd.>> UCS.mFor an arbitrary dxd...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): Composite parameterization of unitary groups Download |
This code optimises the parameters for the term structure of volatility (TSOV) applied to historical forward curves - see discussion in Harris in reference 1 below. TSOVs avaible are: TermType - 1 = sigma = A exp (-CT) - 2 = sigma = A exp (-CT) + D - 3 = sigma = (A + BT) exp (-CT) + DRequired...
Platforms: Matlab
License: Freeware | Size: 174.08 KB | Download (45): Term Structure of Volatility Calibration Download |
[blockVectorX,lambda]=lobpcg(blockVectorX,operatorA)outputs the array of algebraic smallest eigenvalues lambda andcorresponding matrix of orthonormalized eigenvectors blockVectorX of the Hermitian (full or sparse) operator operatorA using input matrix blockVectorX as an initial guess, without...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (39): lobpcg.m Download |
Lyapunov exponent calcullation for ODE-system. The alogrithm employed in this m-file for determining Lyapunov exponents was proposed in A. Wolf, J. B. Swift, H. L. Swinney, and J. A. Vastano, "Determining Lyapunov Exponents from a Time Series," Physica D, Vol. 16, pp. 285-317, 1985.For...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (49): Calculation Lyapunov Exponents for ODE Download |