Loading input.gsc-input { border-color: #BCCDF0; } input.gsc-search-button { border-color: #666666; background-color: #CECECE; }
 Everything HP200LX: Knowledge, Products, Service
 Archives 9 years, 100's of pages of HP Palmtop Paper, jammed with tips, reviews and how-to's Links Most useful, up-to-date Web sites devoted to the HP 200LX Downloads Direct link into 1000's of pieces of Palmtop software Tips from Our Techs 2008 Catalog (PDF, 2.6 MB) Contact Us/About Us
 Weekly Palmtop Paper Newsletter (Palmtop tips, latest happenings, and HP Palmtop Paper Store information)
Create HP CALC Graphics

### Create HP CALC Graphics

The 95LX offers you an easy and inexpensive way to create your own graphics from within HP CALC by using simple mathematical formulas.

For example, consider the well known formula y = sin(x) and start Function Plotting (press (F10) (Graph)), set the RAD option (press (MENU) Options Radians), set XMIN= O, XMAX= 10,100, YMIN=-1.2, YMAX= 1.2 and XVAR=X. Now your parameter to play with is the Resolution (F10), the number of points to be calculated for a curve.

As you vary (F10) from 179 to 195 or over, as I did, you can watch how dramatically curves will change their character. You will receive the most beautiful patterns worth studying in a time of leisure and relaxation. In case your boss wanders by: It's all mathematics!

How do you like that N= 189 or 193? Try to plot y = sqrt(x)*sin(x) and see what happens when you change XMAX (F6) and/or F I 0. Find your own formulas.

For those of you interested in theory of mathematics: Because of the wide range of the x-axis values for the y-axis are calculated not from one and only 'hill-and-valley' as usual but are collected 'jumpwise' from 'hills-and-valleys' set widely apart but still following strict mathematical rules and thus not allowing for a smooth connection of all points.

Hermann Schmitt

Winnweiler, GERMANY