Rank: 28 based on 6568 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:

 

Watch this Author's files

 

Files Posted by David View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
27 Dec 2004 numerical.zip Archive containing numerical function files. Author: David Terr numerical, function, archive, mathematics 164 0
27 Dec 2004 Lucas.m Given a nonnegative integer n, return the nth Lucas number. Author: David Terr lucas number, fibonacci number, symbolic math, mathematics 194 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 positive definite, reduced, quadratic form 181 0
29 Nov 2004 qftimes.m This function composes two quadratic forms. Author: David Terr positive definite, reduced, composition, quadratic form 170 0
10 Nov 2004 Screenshot Physics.zip Archive containing various files pertaining to physics. Author: David Terr physics, archive, chemistry, information, files 202 5
  • 3.66667
3.7 | 6 ratings
Comments and Ratings on David's Files View all
Updated File Comment by Comments Rating
31 Mar 2009 Wigner3j.m Wigner3j(j1,j2,j,m1,m2,m) returns the Wigner 3j-symbol. Author: David Terr Hakansson, Par

Ops, did not read the table caption, it was 3jsymbol squared in table. now it match better for a few test cases

30 Mar 2009 Wigner3j.m Wigner3j(j1,j2,j,m1,m2,m) returns the Wigner 3j-symbol. Author: David Terr Hakansson, Par

Made quick test against alpha=beta=gamma=0 3jsymbols in Table 2, in D.M. Brink and R.G. Satchler "Angular Momentum" Oxford Science Publications and can not get a match

05 Nov 2008 Wigner3j.m Wigner3j(j1,j2,j,m1,m2,m) returns the Wigner 3j-symbol. Author: David Terr DUBOST, Brice

It doesn't respect wigner 3j symetries

Wigner3j(1,1,1,1,-1,-1) is not 0

05 Nov 2008 Wigner3j.m Wigner3j(j1,j2,j,m1,m2,m) returns the Wigner 3j-symbol. Author: David Terr DUBOST, Brice

23 Sep 2008 Pell.m Pell(d,s,n) returns the first n positive integer solution to the modified Pell's equation x^2-dy^2=+ Author: David Terr asdasd, asdasdas

Top Tags Applied by David
symbolic math, mathematics, differential equations, polynomial, continued fraction
Files Tagged by David View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
27 Dec 2004 numerical.zip Archive containing numerical function files. Author: David Terr numerical, function, archive, mathematics 164 0
27 Dec 2004 Lucas.m Given a nonnegative integer n, return the nth Lucas number. Author: David Terr lucas number, fibonacci number, symbolic math, mathematics 194 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 positive definite, reduced, quadratic form 181 0
29 Nov 2004 qftimes.m This function composes two quadratic forms. Author: David Terr positive definite, reduced, composition, quadratic form 170 0
10 Nov 2004 Screenshot Physics.zip Archive containing various files pertaining to physics. Author: David Terr physics, archive, chemistry, information, files 202 5
  • 3.66667
3.7 | 6 ratings
 

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