**
Using the
TI-83 in Calculus**

Do not become
overly
dependent
on your calculator. It's a very useful tool for complicated
calculations, but __you should be able to do the basic computations
and
manipulations
in calculus without a calculator__--or, at most, just using it to
help
out with tedious arithmetic. Calculators may or may not be allowed on
quizzes/tests
in particular courses: check with your instructor about the course
policy.
Generally, calculators with a built in CAS (Computer Algebra System)
are __not__
allowed on tests and quizzes.

You're
probably __too__
dependent on your calculator if, for example:

1)
You
use a calculator when you need to know sin(pi/6) or tan(pi/3) or
ln(e^(-3.9))

2)
You
use a calculator to get answers in calculations such as 4/7 + 3/8,
which
can be easily done by hand. Finding (approximate) decimal answers
instead
of exact fractions in relatively simple problems generally means that a
student uses the calculator too much.

3)
You
don't know the appearance of simple graphs like y=(x-1)^2, y=cos(2x) +
1, y = 2^(-x), etc. without having your calculator graph them.

4)
You
find yourself immediately punching buttons on the calculator as soon as
you get started on a test. Generally, not very many problems on a
calculus exam will genuinely require a calculator.

The
following
files may
be
useful in beginning calculus courses. The instructions are written for
the TI-83 calculator, but the methods may be similar on other Texas
Instruments
models.

Parametric
Equations on the TI83

Approximating
Derivatives with the TI83

Approximating
Areas on the TI83

Midpoint
Approximations on the TI83

Simpson's
Approximation on the TI83

Numerically
Approximating Integral on the TI83

Sequences
and Series on the TI83