Bessel

Calculates the zeros of the first derivatives of Bessel function.Updates BessDerivZerosBisect.m with these changes:1. Allows for m = 02. Allow the user to specify the particular m and k values desired.3. Allows for a tolerance input parameter4. Uses a table look-up to get closer initializations... Platforms: Matlab

Math, financials, stats, combinative, dates, y=f(x), series, units and calendars conversions, geometry, pi, Fourier, Taylor, Gamma, Bessel, Bernoulli, Fisher, prime numbers, fractionations, equations, electricity, chemistry, molar masses, currencies. Divx Bitrate Calculator. Advanced astronomy... Platforms: Windows

These routines are programmed by using Matlab langurage , according to the translation relationships between the Mathieu functions with positive and negative parameters.Some functions are quoted from Ben Barrowes' direct translation, performed using f2matlab, of the original FORTRAN-77... Platforms: Matlab

This routine implements Hankel transforms of integer order based on a Fourier-Bessel series expansion. The algorithm is based on a recently published research work:M. Guizar-Sicairos and J. C. Gutierrez-Vega, Computation of quasi-discrete Hankel transforms of integer order for propagating optical... Platforms: Matlab

Separation of variables allows the determination of the transient velocity profile in a pipe. The present program computes the zeros of the Bessel function and plots the transient velocity profile of a pipe flow. Platforms: Matlab

Ultrasim is an interactive, menu-oriented simulator for finding the sound field from transducers, primarily for medical ultrasound. Ultrasim can handle 1D, 1.5D and 2D linear and phased arrays, and flat and curved arrays with many different footprints such as rectangular and elliptical. It also... Platforms: Matlab

Computes Disk Harmonic Functions; uses Bessel functions and derivatives Requires BessDerivZerosBisect2.mfunction dnm = DiskHarmonic(m,n,r,theta) if(m == 0) dnm = 1*Rnm elseif(m 0) dnm = sqrt(2)*Rnm.*cos(mu*theta) end m0: dnm(r,theta) = sqrt(2)*Rnm(r)*cos(m*theta) (m = |mu|) n = 0,1,2,... m =... Platforms: Matlab

For the implementation of the INSPIRE directive all so far in Germany available geo references with Gauss-Krueger / DHDN coordinates now must be converted to UTM / ETRS89 coordinates for future use. BetaDLL supports the development of geodetic software on various platforms for this... Platforms: Windows, Mac, Unix, Linux

This is free software that adds several spline and linear interpolation functions to Microsoft Excel. It is simple to use because the new functions work just like all other existing Excel functions. Spline functions include cubic spline, bessel spline, and 'OneWay' spline (which is a monotonic... Platforms: Windows, Windows 8, Windows 7, Windows Server

variogramfit performs a least squares fit of various theoretical variograms to an experimental, isotropic variogram. The user can choose between various bounded (e.g. spherical) and unbounded (e.g. exponential) models. A nugget variance can be modelled as well, but higher nested models are not... Platforms: Matlab

These routines are calculation routines for Mathieu functions with arbitrary parameters (positive, Negative and Complex)The package includes the following subroutines:fcoef1---Compute the expanded coefficients of Seriesdbesselj----Compute the derivatives of Bessel functions;dbessely----Compute... Platforms: Matlab

These routines are the improved calculation routines for Mathieu functions with positive parameters based on Ben Barrowes' direct translation, performed using f2matlab, of the original FORTRAN-77 implementation of "Computation of Special Functions."The package includes the following... Platforms: Matlab

mpmath is a replacement for Python's float/complex types and math/cmath modules with unlimited precision and exponent sizes. The mpmath software is written entirely in Python without any external dependencies and hence runs almost anywhere, without the need for compilation. To install, unpack... Platforms: Mac

The Circular Well model displays the 2D energy eigenstates of a particle trapped in a very deep two-dimensional circular well. Because the Schr?*A*dinger equation for this system is separable into radial and angular differential equations, the solution can be expressed as a product of a Bessel... Platforms: Mac