Finding Minimum Surface Area Of A Parallelepiped - Texas Instruments TI-89 Titanium User Manual

Method 2: Symbolic Manipulation
Perform the following steps to solve the equation
1. On the Home screen, enter
.
cos(x),x)
The solution for
integer.
2. Using the
ceiling( )
find the ceiling and floor values for the
intersection points as shown.
Move the cursor into the history
Note:
area to highlight the last answer. Press
¸ to copy the result of the general
solution.
3. Enter the general solution for x and apply
the constraint for
Compare the result with Method 1.
To get the with operator:
Note:
@ Í

Finding Minimum Surface Area of a Parallelepiped

This activity shows you how to find the minimum surface area of a parallelepiped having
a constant volume
found in Symbolic Manipulation and 3D Graphing.
Activities
solve(sin(x)=
is where is any
x @n1
and functions,
floor( )
as shown.
@n1
. Detailed information about the steps used in this example can be
V
with respect to
sin(x)=cos(x)
.
x
729