Rank: 201 based on 964 downloads (last 30 days) and 8 files submitted
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Dmitry Savransky

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Princeton University
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40.35086, -74.650345

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Files Posted by Dmitry View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
22 May 2009 Screenshot Watt Linkage Animation Solve the equations of motion for, and animate an arbitrary 3 bar Watt Linkage. Author: Dmitry Savransky modeling, simulation, demo, teaching 100 0
29 Apr 2009 Screenshot animEuler Animate sets of Euler rotations using arbitrary Euler angles and rotation order. Author: Dmitry Savransky animation, demo, direction cosines, euler angles, aerospace 114 0
13 Mar 2009 Conversion between Equatorial and Ecliptic Coordinates Convert between the equatorial and ecliptic celestial coordinate systems. Author: Dmitry Savransky mapping, mathematics, astronomy, aerospace 102 0
15 Dec 2008 Keplerian State Transition Matrix Given initial positions and velocities, calculate the keplerian state transition matrix for an orbit Author: Dmitry Savransky matrix, aeronautics, kepler, aerodef, transition, state 161 1
  • 4.0
4.0 | 1 rating
09 Jul 2008 UDFactor Performs the U-D factorization of a symmetric matrix. Author: Dmitry Savransky ud factorization, linear algebra, ud filter, ud, mathematics, linear algera 156 1
  • 5.0
5.0 | 2 ratings
Comments and Ratings by Dmitry
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12 Oct 2009 Multiple Precision Toolbox for MATLAB This toolbox defines a new mp class allowing multiple precision objects in MATLAB. Author: Ben Barrowes

Absolutely fantastic. Exactly what I needed - many thanks. Quick note for anyone installing on RHEL5. The default rpms that may be pre-installed for GMP don't seem to work when it comes time to compile the c files. However, if you get rid of these and compile GMP and MPFR from source, everything works great.
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05 Nov 2009 Lomb (Lomb-Scargle) Periodogram Computes the Lomb normalized periodogram (spectral power as a function of frequency). Author: Dmitry Savransky Filipe

I have one question regarding the units that the lomb.m outputs.
The power is in ms^2, s^2, ms^2/Hz, s^2/Hz????

Any help on this would be greatly appreaciated.

Best regards!

Thank you very much in advance!
25 Jun 2009 Lomb (Lomb-Scargle) Periodogram Computes the Lomb normalized periodogram (spectral power as a function of frequency). Author: Dmitry Savransky guj

How you can reconstruct the original data
08 Apr 2009 UDFactor Performs the U-D factorization of a symmetric matrix. Author: Dmitry Savransky Buehren, Markus

04 Mar 2009 Keplerian State Transition Matrix Given initial positions and velocities, calculate the keplerian state transition matrix for an orbit Author: Dmitry Savransky Oldenhuis, Rody

Well documented, understandibly written. Thanks!
There is a potential problem tough on lines 57-59: SUM and DOT by default work along the first dimension (down the columns) while you intend them to work along the second dimension (along the rows). A simple SUM(r0.^2, 2) will do.

31 Jul 2008 Lomb (Lomb-Scargle) Periodogram Computes the Lomb normalized periodogram (spectral power as a function of frequency). Author: Dmitry Savransky Hodel, Benj

Have you thought about coding a faster implementation of this as detailed in W.H. Press and G.B. Rybicki, "Fast Algorithm for Spectral Analysis of Unevenly Sampled Data," Astrophysical Journal, 338, 277 (1989)? I think it would be much quicker and more useful. See http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1989ApJ%2E%2E%2E338%2E%2E277P
Top Tags Applied by Dmitry
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aerospace, mathematics, animation, demo, aerodef
Files Tagged by Dmitry View all
  • 1 - 5 of
  • 8
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
22 May 2009 Screenshot Watt Linkage Animation Solve the equations of motion for, and animate an arbitrary 3 bar Watt Linkage. Author: Dmitry Savransky modeling, simulation, demo, teaching 100 0
29 Apr 2009 Screenshot animEuler Animate sets of Euler rotations using arbitrary Euler angles and rotation order. Author: Dmitry Savransky animation, demo, direction cosines, euler angles, aerospace 114 0
13 Mar 2009 Conversion between Equatorial and Ecliptic Coordinates Convert between the equatorial and ecliptic celestial coordinate systems. Author: Dmitry Savransky mapping, mathematics, astronomy, aerospace 102 0
15 Dec 2008 Keplerian State Transition Matrix Given initial positions and velocities, calculate the keplerian state transition matrix for an orbit Author: Dmitry Savransky matrix, aeronautics, kepler, aerodef, transition, state 161 1
  • 4.0
4.0 | 1 rating
09 Jul 2008 UDFactor Performs the U-D factorization of a symmetric matrix. Author: Dmitry Savransky ud factorization, linear algebra, ud filter, ud, mathematics, linear algera 156 1
  • 5.0
5.0 | 2 ratings
 

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