Variance Formula

rProphecy uses the Spearman-Brown prophecy formula to calculate the reliability of a test if items are added or deleted.

Slopinator is a basic application that solves some of the most tedious and boring equations including the quadratic formula and others.

fMath Web Editor is the best editor to create and edit equations on web. It has more than 20000 symbols to display and a rich interface. The formula can edited by interface or in MathML or in LaTeX. And is free of charge to use and to distribute.


Platforms: Not Applicable

A modern, interactive, Mac OS X Universal graphing application, providing: - A rich variety of graph types with numerous styles of data representation - Real-time, two-way interaction with data, enabling simultaneous data visualization and graphing from multiple worksheets - Exploratory tools...


Platforms: Mac

Are you a fan of Formula 1 or NASCAR? Do you feel adrenaline rushing into your veins when you exceed speed-limit while driving your car? Then this 3D Sports Car Screensaver is a perfect theme for your desktop. Put it on your computer and enjoy a stylish sports car starting right from your screen....


Platforms: Windows

In this game you have 4 cards, and you are required to use these 4 cards and arithmetic signs to make a formula that gives 24. A is 1, J is 11, Q is 12, K is 13. You can use add, subtract, multiply, divide and brackets in the formulas, and all the four cards must be used.


Platforms: Windows

iso2l (ˈaisəutuːl, spoken isotool) is a software to calculate the isotopic distribution of a chemical formula or a amino acid chain.


Platforms: Windows, Mac, Linux

LaTeXTaglet is a javadoc taglet for using LaTeX formula in standard javadoc-generated html documentation.


Platforms: Windows, Mac, Linux

Given the chemical formula, MolWgt calculates the molecular weight of a substance.


Platforms: Mac, BSD, Linux

pystats is a comprehensive Python module implementing algorithms for statistics and information theory, including probability distributions, descriptive statistics, analysis of variance, regression, and inference.


Platforms: Windows, Mac, Linux

Processes boolean functions which can be provided either as a list of 0s and 1s or which can be provided as a formula in first-order logic (using disjunctive or conjunctive normal forms). Internally the Quine McCluskey algorithm is used.


Platforms: Windows, Mac, Linux

Dript can be used by other modules to add scripting or formula capability.The module implements a filter that can be applied to nodes and other contents.As a dialect of LISP and a simpler LISP, Dript is for non-programmers who want to alter their contents slightly according to certain behaviors....


Platforms: Windows, Mac, *nix, PHP, BSD Solaris

The PHP Game ladder is a system where have rung games and they can report the results of games and the system updates everybody's position through partially exchanging rung positions (or some other similar formula).


Platforms: Windows, Mac, *nix, PHP, BSD Solaris

galculator is a GTK 2 based calculator with ordinary notation/reverse polish notation, a formula entry mode, different number bases (DEC, HEX, OCT, BIN) and different units of angular measure (DEG, RAD, GRAD).galculator features two user modes: basic and scientific mode. Basic mode is intended...


Platforms: *nix, C/C++, BSD

A replacement for the transfer function normprod.m in the MATLAB NN toolbox. With this transfer function, the NaNs in the simulation of RBF neural networks can be avoided.The function can handly zeros, and positive and negative infinite values in the weight vector. Also combinations of positive...


Platforms: Java

"It's one of the most used models for signal prediction in urban areas, valid from 150Mhz to 1500MHz, losses are spreading in the urban area as a standard formula and proprciona fixes for applications to other situations"


Platforms: Matlab

This file contain functions for the calculations of:- Fresnel integral with sine and cosine integral- Fresnel integrals- Diffraction loss over one knife-edge using Fresnel integration end Lee's formula- Ploting the Cornu's spiral


Platforms: Matlab

The GMM returns the cluster centroid and cluster variances for a family of points if the number of clusters are predefined. The centroid and variance can then be passed to a Gaussian pdf to compute the similarity of a input query point with reference to given cluster.


Platforms: Matlab

A uniform random number generator is used to generate the binary information sequence from the binary data source. The sequence of d-de?0d-deOaos and d-de?1d-deOaos is mapped into sequence of +E and d-deOCtEwhere E represents the signal energy. E may be normalized to unityThe Gaussian noise...


Platforms: Matlab

Current direct sequence code division multiple access (DS-CDMA) system suffer from Multiple access interference (MAI) and Inter symbol interference (ISI) due to the frequency selective channel. This interference can be avoided by use of Adaptive Beamforming. There are two different minimum...


Platforms: Matlab