VI. Menu Keys

    C. F3 Calc

The Calc toolbar contains a number of commonly used calculus functions. You can also access this menu from the Math Menu.

Clear the value of any variable that you are going to use unless you need for the variable to have a particular value during the execution of the solving process.

Not all options are given in the entry format. Options that are used frequently will be included, but others are omitted from the table. For a complete format listing, you can check the TI-89 manual. They can be found in the manual.

   

Menu Item &
Entry Format
Description
Example
Example
1:d    (differentiate)
d(expression, var)
This will differentiate an expression
with respect to an indicated variable.
You can also access this function on
the homescreen using .
2: (integrate)
(expression, var) or
(expression, var,lower,upper)
This will integrate an expression with
respect to an indicated variable.
You can also access this function on
the homescreen using .
Definite integrals can also be found.
3:limit
limit(expression, var, point)
Returns a limit with respect to an
indicated variable. Direction can be
indicated with negative = from left,
and positive = from right. Limits can
be sensitive to rounding error.
4:(sum)
(expression,var,low,high)
This will evaluate an expression at
discrete variable values within a
given range and then calculates
the product.
5: product
(expression,var,low,high)
This evaluates an expression for each
value of the indicated variable from
low to high, and returns the product
of the results.
6:fMin
fMin(expression,var)
This finds candidate values of the
indicated variable that minimize or
maximize the expression.
7:fMax
fMax(expression,var)
8:arcLen
arcLen(expression1,var,start,end)
Evaluates the arc length of an
expression with respect to the
indicated variable.
9:taylor
Taylor(expression,var,order,[point])
Returns a Taylor polynomial of the
indicated degree and expansion point.
The default expansion point is 0.
A:nDeriv
nDeriv(expression,var,[h])
Evaluates the numerical derivative of
the expression.
B:nInt
nInt(expression1,var,lower,upper)
Evaluates a numerical integral.
C:deSolve
deSolve(1stOr2ndOrderOde,
independentVar,dependentVar)
Returns an equation that explicitly or
implicitly specific a general solution
to the 1st- or 2nd-order ODE.

   

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