Hewlett-Packard 38G student graphic calculator, 1995
The HP 38G is a graphing calculator for high-school math and science teachers and students. Introduced in 1995 at $79.95, it supports aplets, small applications that can be developed as part of the curriculum and can be easily distributed from the teacher's calculator to the students'. Using aplets, all the students in the classroom can have their calculators programmed identically at the beginning of a lesson. Equations are entered using algebraic format rather than the Reverse Polish Notation (RPN) used by most HP calculators. (RPN is a system for representing mathematical expressions without the use of parentheses.)
The HP 38G can communicate with other calculators via infrared transfer, a local area network or the Internet. Teachers can program problems on a HP 38G, connect the calculator to a PC and post the work online, or use the device's infrared ray to beam data to other HP 38Gs in the classroom.
The HP 38G was designed with the help of an advisory committee of eight high school, community college and university teachers. The calculator case was designed to include a sliding plastic cover to make the HP 38G more durable for use by younger students.
- Read the Hewlett-Packard Journal's June 1996 article, "A Graphing Calculator for Mathematics and Science Classes." (PDF, 151KB)
- Read the Hewlett-Packard Journal's June 1996 article, "Creating HP 38G Aplets." (PDF, 63KB)
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The Hewlett-Packard 38G was designed with the help of an advisory committee of eight high school, community college and university teachers.