Texas Instruments PLUS TI-89 - Manual (Page 92)

Chapter 3: Symbolic Manipulation 75
03SYMBOL.DOC TI-89/TI-92 Plus: Symbolic Manipulation (English) Susan Gullord Revised: 02/23/01 10:52 AM Printed: 02/23/01 2:12 PM Page 75 of 24
From the Home screen, press … to display:
This menu is also available from the MATH
menu. Press 2 I and then select
A:Calculus .
Menu Item Description
d differentiate Differentiates an expression with respect to a
specified variable.
‰ integrate Integrates an expression with respect to a specified
variable.
limit Calculates the limit of an expression with respect to
a specified variable.
G sum Evaluates an expression at discrete variable values
within a range and then calculates the sum.
Π product Evaluates an expression at discrete variable values
within a range and then calculates the product.
fMin Finds candidate values of a specified variable that
minimize an expression.
fMax Finds candidate values of a specified variable that
maximize an expression.
arcLen Returns the arc length of an expression with respect
to a specified variable.
taylor Calculates a Taylor polynomial approximation to an
expression with respect to a specified variable.
nDeriv Calculates the numerical derivative of an expression
with respect to a specified variable.
nInt Calculates an integral as a floating-point number
using quadrature (an approximation using weighted
sums of integrand values).
deSolve Symbolically solves many 1st and 2nd order
differential equations, with or without initial
conditions.
Overview of the Calc Menu
You can use the … Calc toolbar menu to select commonly
used calculus functions.
The Calc Menu
Note: For a complete
description of each function
and its syntax, refer to
Appendix A.
Note: The d symbol for
differentiate is a special
symbol. It is not the same as
typing the letter D on the
keyboard. Use
… 1 or
2 = .