Scott's HP48 Page
Here are some programs that I've written for the HP48. If the pdf
documentation comes up blank, then I'd suggest that you download it and
view it offline. (Right click on the link and select "Save link as" or
"Save target as".)
- Daylight v1.0
This library automatically adjusts the HP48G/GX
calculator's clock for daylight savings time in the United
States. However, it is not up to date according to the new laws
that will be implemented in March 2007. Links to the zip package and
pdf documentation are given below.
- Linalg v1.0
Implements linear algebra functions not built into the
HP48G/GX. Includes factorization commands (Cholesky
factorization, Full-Rank factorization), vector space tools
(Null Space, Column Space, Eigen-space), symbolic matrix
building commands, Projection Operator commands, Matrix
Generation commands (including the Hilbert matrix and its
inverse, the duplication matrix, the commutation matrix, and others),
miscellaneous linear algebra commands (rank, pseudo-inverse
(or generalized inverse), Kronecker product, matrix
exponentiation, and others). Links to the zip package and
pdf documentation are given below.
- Upper Tail v1.0
Implements the calculation of upper tail probabilities
for a number of distributions, including the normal,
chi-squared, Snedecor's F, Student's t, the Binomial, the
Negative Binomial, and the Poisson distribution. Extends the
useable degrees of freedom for the F and t distribution by
using large-sample normal approximations. Calculation of
upper-tail probabilities of the Binomial, Negative Binomial,
and the Poisson distribution use relationships between them
and the F or t distribution. Further, implementation of the
inverse of the upper tail probability commands is accomplished
using the HP48G/GX's built in ROOT command. Unlike the built
in commands for upper-tail probabilities, these commands also
allow themselves to be used in algebraics. A Hypergeometric
distribution command is also included. Links to the zip
package and pdf documentation are given below.
S. Hyde
Last modified: Fri Feb 8 16:19:55 MST 2002