HP-40G
Encyclopedia
The HP-40G is an algebraic entry only graphing calculator
from HP
. Based on the HP-38G
design, numerous firmware improvements and the inclusion of a CAS
made this a very capable math platform.
The hardware is identical to the HP-49/39G series (complete with rubber keyboard), and the CAS is identical to that used in the HP-49G. Unlike its "bigger brothers", the HP-40G has no flags to set/mis-set resulting in a "better behaved" calculator for straightforward math analysis. Additionally the HP-40G does not have infrared connectivity, and is limited to 27 variables
. A list-based solver, and other handicaps make this simple-to-use calculator less adapted to higher end use. The HP-40G is not allowed for use in many standardized tests including the ACT and SAT tests.
Graphing calculator
A graphing calculator typically refers to a class of handheld calculators that are capable of plotting graphs, solving simultaneous equations, and performing numerous other tasks with variables...
from HP
Hewlett-Packard
Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...
. Based on the HP-38G
HP-38G
The HP-38G is a programmable graphing calculator by Hewlett Packard. It was introduced in 1995 with a suggested retail price of 79.95 USD. HP credits a committee of eight high school, community college, and university teachers with assisting in the design of the calculator.The HP-38G, unlike most...
design, numerous firmware improvements and the inclusion of a CAS
Computer algebra system
A computer algebra system is a software program that facilitates symbolic mathematics. The core functionality of a CAS is manipulation of mathematical expressions in symbolic form.-Symbolic manipulations:...
made this a very capable math platform.
The hardware is identical to the HP-49/39G series (complete with rubber keyboard), and the CAS is identical to that used in the HP-49G. Unlike its "bigger brothers", the HP-40G has no flags to set/mis-set resulting in a "better behaved" calculator for straightforward math analysis. Additionally the HP-40G does not have infrared connectivity, and is limited to 27 variables
Variable (programming)
In computer programming, a variable is a symbolic name given to some known or unknown quantity or information, for the purpose of allowing the name to be used independently of the information it represents...
. A list-based solver, and other handicaps make this simple-to-use calculator less adapted to higher end use. The HP-40G is not allowed for use in many standardized tests including the ACT and SAT tests.
External links
- HP-40G on MyCalcDB (database about 70's and 80's pocket calculators)
- http://www.actstudent.org/faq/answers/calculator.html