4colors.zip   Graphics in 4 gray scales for the HP 48
beno.zip      About Fractal images v1.0 by Detlef Mueller. Every time I start using a new computer or learn a new (computer) language, I write a program which draws the Mandelbrot set Z(n+1) = Z(n)^2 + C. Here are various versions I wrote for the HP48.
claudia.zip   11 color picture. Whada babe!
cview10.zip   CView is a HP 48 graphic object (GROB) viewing program.
dragon.zip    Draw Dragon Curves by ??????????????? Dragon curves? Yeah, those things that you make by folding a strip of paper in half n times & then unfolding it so all the corners are right angles. PROGRAMS: DRAGON: generates a dragon curve of order n (n>=3). SKETCH: draws a dragon curve. DRAWC: (called by SKETCH).
effect.zip    Graphical effect
fractals.zip  Mandelbrot Sets Generator by Dan Ciarniello. This program will generate the Mandelbrot Set on the HP 48. It also includes four sample fractal images (in F1, F2, F3, and F4). When downloaded, a custom menu containing the programs that are accessed directly by the user is created. The main program is called by MANDELin the custom menu.
glbr.zip      Globe Rotator by John Peterson. This program will amaze you!. It shows the real power of GROBs and the speed of the HP 48SX. It's an animation of a spinning earth.
graphedt.zip  1) supports unlimited grob size (well really 65536x65536). 2) time critical routines written in sys rpl and machine language. 3) features a machine language fill/pattern fill routine which will fill any region bordered by on pixels or edge of grob. User can define 8x8 bitmaped fill patterns as well as solid fill. 4) the main menu (which is the smallest portion of this program) is written in user rpl which allows easy user customization. 5) supports high speed editing of graph grob with full menu control. Editing features are fill, erase region, cut/paste type feature, circle, box, and line drawing. 6) User can easily take subroutines from this program (such as the fill routine) and use them in other applications.
grobrot.zip   Grob rotate+ print by Robert Craeger and Robert Thompson. In the hopes of being able to print GROBS that were too long to fit into the 166 dot requirement of the printer, the program below was written. This program will rotate a GROB and print it vertically on the IR printer that so many of us wish we had.
lll.zip       Plots and Animate a series of lissajous by Rob Steele. This code plots a series of lissajous and animates them. It is possible to see the resulting figure in about eleventy two different ways: cylindrical or flat, rotating or oscillating about a horizontal or vertical axis, moving toward you or away, moving to the left or to the right, or just wobbling.
spline.zip    Interpolation v2.0 by Ruben Rostamian. SPLINE generates a piecewise cubic and twice continuously differentiable interpolation y(x) of a set of points (x_i,y_i), i=1,2,...,n. It is assumed throughout that x_1 < x_2 < ... < x_n.
sunclk.zip    SunClk by James Elliott. One of my all time favorite UNIX workstation programs is called "sunclock", and it shows the regions of the Earth which are in daylight by drawing the sunlight on a Mercator projection map of the globe. So here is an HP version of sunclock!
threed.zip    3D Surface Graphing Program by David D Jansen. Some features are: 1. It doesn't go belly up if it encounters a divide by zero or undefined result. 2. It allows the domains of the XY plane to be defined to any value ( although it centers the plot on the origin). 3. The equation is entered in X, Y, Z format not parametric form. 4. It creates a matrix of the topology of the surface which is useful for locating actual values of a max or min.
xbm2grob.     A XBM file to GROB file converter.