Rank: 210 based on 262 downloads (last 30 days) and 31 files submitted
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David Terr

E-mail
Company/University
Raytheon

Personal Profile:

I received a Ph.D. in number theory from UC Berkeley in 1997. I also enjoy other areas of math, as well as physics and computer programming. I live in Goleta, CA, near Santa Barbara and work at Raytheon in Goleta.

Professional Interests:

 

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Files Posted by David View all
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  • 31
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
27 Dec 2004 numerical.zip Archive containing numerical function files. Author: David Terr numerical, function, mathematics, archive 1 0
27 Dec 2004 Lucas.m Given a nonnegative integer n, return the nth Lucas number. Author: David Terr symbolic math, lucas number, fibonacci number, mathematics 3 0
  • 5.0
5.0 | 1 rating
27 Dec 2004 rqf.m Reduce a binary quadratic form, given as a row vector of length 3. Author: David Terr quadratic form, positive definite, reduced 0 0
29 Nov 2004 qftimes.m This function composes two quadratic forms. Author: David Terr quadratic form, positive definite, reduced, composition 1 0
10 Nov 2004 Screenshot Physics.zip Archive containing various files pertaining to physics. Author: David Terr chemistry, physics, files, information, archive 5 5
  • 3.66667
3.7 | 6 ratings
Comments and Ratings on David's Files View all
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Updated File Comment by Comments Rating
09 Jan 2012 Fibonacci.m Given an integer n, return the nth Fibonacci number. Author: David Terr Ashnod, Ragaar

Was just playing around:
L34: If you make it an mpower operation this function can support vector inputs.

fib = round( alpha.^n / sqrt(5) );
15 Dec 2011 LaguerrePoly.m This program returns the coefficients of the Laguerre polynomial L_n, given n. Author: David Terr Stephanie

Useful tool
22 Mar 2011 HermitePoly.m This program returns the coefficients of the Hermite polynomial H_n, given n. Author: David Terr wang, kittelluyao

Thank you a lot
14 Mar 2011 HermitePoly.m This program returns the coefficients of the Hermite polynomial H_n, given n. Author: David Terr Chen, Bo

Well done!
08 Feb 2011 Wigner3j.m Wigner3j(j1,j2,j,m1,m2,m) returns the Wigner 3j-symbol. Author: David Terr Mueller, Christian

Still, the file does not check if the condition m1 + m2 = m3 is fulfilled. This should still be added!! In the current version it's very problematic to use the code! False results e.g. for angular momentum couplings are inevitable with this code.

Top Tags Applied by David
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symbolic math, mathematics, differential equations, polynomial, continued fraction
Files Tagged by David View all
  • 1 - 5 of
  • 31
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
27 Dec 2004 numerical.zip Archive containing numerical function files. Author: David Terr numerical, function, mathematics, archive 1 0
27 Dec 2004 Lucas.m Given a nonnegative integer n, return the nth Lucas number. Author: David Terr symbolic math, lucas number, fibonacci number, mathematics 3 0
  • 5.0
5.0 | 1 rating
27 Dec 2004 rqf.m Reduce a binary quadratic form, given as a row vector of length 3. Author: David Terr quadratic form, positive definite, reduced 0 0
29 Nov 2004 qftimes.m This function composes two quadratic forms. Author: David Terr quadratic form, positive definite, reduced, composition 1 0
10 Nov 2004 Screenshot Physics.zip Archive containing various files pertaining to physics. Author: David Terr chemistry, physics, files, information, archive 5 5
  • 3.66667
3.7 | 6 ratings

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