akcs.ezsoft@hpcvbbs.UUCP (raymond la barbera) (04/06/91)
Introducing E.Z. Math for the HP 48SX
E.Z. Math is a program for the Hewlett Packard 48SX calculator written,
conceived and programmed by Raymond La Barbera and the E.Z. Software
Company. It comes on a 128K plug-in ROM card and with a 188 page manual.
It is designed to be used by math and science students, teachers, parents
and business people.
What Does E.Z. Math Do?
E.Z. Math has six modules dealing with graphs, loans, savings, numbers,
games and music:
Graphs. E.Z. Math covers the entire high school and college graphing
curriculum, from elementary algebra to advanced calculus. The student can
choose from 188 families of equations, inequalities, functions, systems
of equations and systems of inequalities, in rectangular, polar and
parametric form, all laid out and arranged in an easy-to-use, logically
organized system of menus. E.Z. Math makes the graphic analysis of
polynomial, rational, trigonometric, hyperbolic, logarithmic and
exponential functions quick and easy.
Loans. E.Z. Math makes it easy to solve problems involving fixed rate
mortgages on houses, condos, co-ops, and other real estate investments.
Anyone wanting to purchase a home can quickly compute the monthly
mortgage payment, the amount that can be borrowed, the number of years
needed to pay off the loan and the annual interest rate and see a
detailed breakdown of each payment in a complete amortization table.
Savings. E.Z. Math makes it easy to solve problems involving a single
deposit or repeated deposits to a savings account, certificate of deposit
[C.D.], term deposit [T.D.], money market account or other such
investment. Anyone interested in saving money can quickly and easily
compute the amount accumulated, the amount that must be deposited, the
number of years necessary to keep the money on deposit and the annual
interest rate.
Numbers. E.Z. Math makes it easy to handle numbers of various types.
Elementary and high school students will find it easy to compute all the
factors and the prime factorization of a natural number. In addition,
finding the greatest common factor, least common multiple and average of
any set of natural numbers is a snap. Any set of rational numbers,
whether in whole number, fraction or mixed number form, may be added,
subtracted, multiplied or divided yielding an answer expressed as a
fraction or mixed number in lowest terms or as an integer. Any set of
complex numbers may be added, subtracted, multiplied, divided or raised
to a power. Any number of terms of the sequences of perfect nth powers,
triangular numbers, binomial coefficients, Fibonacci numbers and
multiples of a number can be easily computed.
Recreation. E.Z. Math provides a couple of strategy number games and an
introduction to the musical capabilities of the HP48SX. These are
provided both for fun and as an encouragement to explore further some of
the many features of the calculator, including a bit of the built-in rich
programming language.
Education. Although using most features of E.Z. Math involves no more
than plugging in the ROM card and following the various on-screen menus,
the E.Z. Math User's Manual explains very clearly and precisely in
complete detail all features and display screens of the program. Just as
important, 46 pages of the manual are devoted to simple, intuitive
explanations of the basic concepts involved in graphs, numbers, sets,
variables, equations, savings and loans.
What's Special About E.Z. Math?
E.Z. Math has many special and unique features which contribute to its
practicality and ease of use. Here are some of them:
A very easy-to-use, logically organized user interface makes possible
the full use of all E.Z. Math features without having to open the 850
page HP Owner's Manual.
To reduce the possibility or user error, all answer screens repeat all
entered data when displaying the answer .
All menu screens, answer screens and graphics screens are easily
printable on the HP82240 infrared printer.
Careful error trapping takes care of invalid user input without crashing
the program.
Absolutely no user contact with the stack is required to use all E.Z.
Math features. Yet, going to the stack without quitting E.Z. Math is just
a keystroke away.
Our easy quit feature restores all user system flags and custom menus,
leaves no "garbage" on the stack and gets rid of variables which are no
longer needed.
Our easy off feature allows turning off the calculator without quitting
the program.
How to Order E.Z. Math
E.Z. Math is available at a retail price of $125.00, plus $5.00 shipping
and handling. We accept payment by check, money order, COD, VISA,
Mastercard, American Express and school purchase orders. If within 30
days of receipt you find that E.Z. Math fails to fulfill your
expectations, we'll gladly take back your copy for a prompt, courteous
refund. To order copies of E.Z. Math or to obtain information about about
ordering E.Z. Math bundled with HP 48SX calculators and classroom
overhead projector kits, please write or call:
SMI Corporation
Dept EMT
250 West New Street, Suite 48
Kingsport, TN 37660
(800) 234-0123 or (615) 378-4821 or (615) 245-8982 (Fax)