Community Profile

# David Terr

### Raytheon

Active since 2004

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.

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Submitted

Pell.m
Pell(d,s,n) returns the first n positive integer solution to the modified Pell's equation x^2-dy^2=+

Submitted

LaguerrePoly.m
This program returns the coefficients of the Laguerre polynomial L_n, given n. Submitted

numerical.zip
Archive containing numerical function files.

Submitted

Lucas.m
Given a nonnegative integer n, return the nth Lucas number.

Submitted

rqf.m
Reduce a binary quadratic form, given as a row vector of length 3.

Submitted

qftimes.m
This function composes two quadratic forms.

Submitted

Physics.zip
Archive containing various files pertaining to physics. Submitted

ClebschGordan.m
ClebschGordan(j1,j2,j,m1,m2,m) is the Clebsch-Gordan coefficient <j1,j2,m1,m2|j1,j2,j,m>.

Submitted

GeneralizedLucas.m
GeneralizedLucas(n,a,b) returns the generalized Lucas number with index n and parameters a and b.

Submitted

GeneralizedFibonacci.m
GeneralizedFibonacci(n,a,b) returns the generalized Fibonacci number.

Submitted

RoundQCF.m
RoundQCF(d,u,v) returns the "round" continued fraction expansion of (u+sqrt(d))/v.

Submitted

harmonic.m
Harmonic(n) is an estimate of the nth harmonic number.

Submitted

fromcfrac.m
Returns the number with the given continued fraction expansion.

Submitted

QCF.m
QCF(d,u,v,quiet) returns the continued fraction expansion of (u+sqrt(d))/v.

Submitted

roundcfrac.m
Computes the "round continued fraction" of a given complex number.

Submitted

cfrac.m
cfrax(x,n) returns the first n terms in the contined fraction expansion of x.

Submitted

SpecialFunctions.zip
Special functions archive.

Submitted

Wigner3j.m
Wigner3j(j1,j2,j,m1,m2,m) returns the Wigner 3j-symbol.

Submitted

AssociatedLaguerrePoly.m
This program returns the coefficients of the Associated Laguerre polynomial L_{n,m}, given n and m.

Submitted

HermitePoly.m
This program returns the coefficients of the Hermite polynomial H_n, given n. Submitted

LegendrePoly
This program returns the coefficients of the Legendre polynomial P_n, given n. Submitted

ChebyshevPoly.m
This program returns the coefficients of the Chebyshev polynomial T_n, given n. Submitted

partitiontable.m
Given a nonnegative integer n, compute a table of the unrestricted partition function p(m) for m<=n. Submitted

Fibonacci.m
Given an integer n, return the nth Fibonacci number.

Submitted

binomial.m
This program computes the binomial coefficient C(n,m).

Submitted

MinkowskiQM.m
Given x from 0 to 1, compute ?(x), where ? is the Minkowski question mark function. Submitted

ChebyshevExpansion.m
Given a polynomial f(x) expressed as a column vector, compute the coefficients of the expansion ...

Submitted

LegendreExpansion.m
Given a polynomial f(x) expressed as a column vector, compute the coefficients of the expansion ...

Submitted

tau.m
Given a nonnegative integer n, tau(n) is the Ramanujan tau function of n.