Derivative Of A Function Calculator

Function for calculaing period of a wave signals in pixels using Hilbert transform.Single or multiple profiles can be used as input for calculating distribution of periods.

The function circumcircle takes input as the coordinates of the three vertices of a triangle and compute the circum center and circum radius by using the formula in terms of the length of sides and area of triangle and plot the circumcircle.

This script uses string.index(sub) function which returns a list of indices of ALL occurances of a substring in the string.


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

Sometimes inside a decorator that creates a function with a generic (*args, **kwargs) signature, you want to access a value passed for a particular parameter name to a wrapped function, but don't know whether that value will be passed as a positional or keyword argument, or whether the wrapped...


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

The velocity and shear stress versus radial position are obtained for the laminar flow of a power-law fluid in a pipe. Pipe radius and applied pressure gradients can be set by the user. If you choose a power-law exponent, n, equal to 1 then a Newtonian fluid is recovered. Dilatant and...


Platforms: Matlab

Extracts the edges of a color image without converting it to grayscale.Changes in color are detected even when the grayscale color of two pixels are the same. The edge strength is typically greater or equal to the magnitude obtained by simply filtering a grayscale image.Optionally, the edge...


Platforms: Matlab

This GUI demo shows how a random variable, X, is transformed to a new random variable, Z, by a function z=f(x). The random variable X can have a uniform probability density function (pdf), a Gaussian pdf, or ?Other pdf? given by a user specified MATLAB expression. A pseudo-random number generator...


Platforms: Matlab

GizmoCalc is a graphic calculator: type definition of a function, for example: sin(x) + 0.2*cos(4*x) + 0.1*sin(7*x+1) We choose the interval of definition (xmin, xmax) and the number of points N where the function will be calculated. GizmoCalc calculates the table of the function at N...


Platforms: Mac

Help Tibor save his village, and his beloved, from the evil countess and her vampire army in Tibor: Tale of a Kind Vampire! Tibor is a poor young painter who is in love with Agness, but her father wants her to marry a rich man. When a wealthy countess asks Tibor to paint her portrait, he thinks...


Platforms: Mac

Become The Chosen One in Tulula: Legend of a Volcano, a wonderful journey to save a small tribe from an evil spell.??On an island far away, a gentle tribe lived in peace and harmony. One day, an evil spirit broke free and wreaked havoc on their happy live


Platforms: Mac

This script allows you to replace a portion of a string at a given position.


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

When working with text, it may be necessary to change the indentation level of a block. This code will take a multiline string and add or remove leading spaces to each line so that the indentation level of the block matches some absolute number of spaces.


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

This script uses the Internet Protocol Helper functions on Win32 and helps you to find the MAC adress of a remote computer.


Platforms: Windows, Python,

This simple code calculates the convex hull of a set of 2D points and generates EPS files to visualise them.


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

This script shows a way to generate a list of all strings (in this case, string=list of symbols) of a given alphabet having a specified length by using list comprehensions. Strings (not the 'string' type) are frequently used in computer science; for example numbers are encoded as strings of...


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

3D Array Factor of a 4x4 planar array antenna calculated using general formulas and then plotted in 3D format."AB" shows the excitation amplitude of the elements and "AB_phase" shows their phases.Elements are placed on the x and y axis and element factor is ignored. The code can easily be...


Platforms: Matlab

Finding the Fourier transform of a rectangular pulse..filtering the spectrum and regenerating the signal usingthe filtered spectrum is done...at the end Rayleigh theorem is proved by showing that the energy content of both time domain and frequency domain signals are equal..your comments are...


Platforms: Matlab

It is very fast and simple file to display histogram of a 3D imageimhist3(I,n) n is the number of bins in the histogramimhist3(X,map) X isindexed 3D image and map is colormap map


Platforms: Matlab

This demo shows how to use MATLAB, Optimization Toolbox, and Genetic Algorithm and Direct Search Toolbox to optimize the design of a double wishbone suspension system.Note: You will need to have the following products installed in order to run this demo: MATLAB, Simulink, Optimization Toolbox,...


Platforms: Matlab

n the bottom of a Stefan tube there is a quiescent liquid with a mixture of acetone (component 1) and methanol (component 2). Vapor that evaporates from this pool of liquid diffuses to the top of the tube. Air (component 3) keeps the mole fractions of components 1 and 2 equal to zero. This...


Platforms: Matlab