8-4 Integrating Equations
Now calculate J
0
(3) with the same limits of integration. You must re-specify the limits
of integration (0, π) since they were pushed off the stack by the subsequent division
by π.
Example: Sine Integral.
Certain problems in communications theory (for example, pulse transmission
through idealized networks) require calculating an integral (sometimes called the
sine integral) of the form
Find Si (2).
value
Prompts for value of X.
∫
x = 2. Starts integrating;
calculates result for
The final result for J
0
(2).
Keys: Display: Description:
Enters the limits of integration
(lower limit first).
Displays the current equation.
∫ _ Prompts for the variable of
integration.
Prompts for value of X.
∫
x = 3. Starts integrating and
calculates the result for
.
The final result for
J
0
(3).
∫
π
0
)(tf
∫
π
0
)(tf
dx
x
x
tS
t
i
)
sin
( )(
0
∫
=