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Integrating Equations 8-3
Example: Bessel Function.
The Bessel function of the first kind of order 0 can be expressed as
Find the Bessel function for x–values of 2 and 3.
Enter the expression that defines the integrand's function:
cos (x sin t )
Now integrate this function with respect to t from zero to π ; x = 2.
Keys: Display: Description:
()
Ö()
Clears memory.
Selects Equation mode.
X
Types the equation.
ÕÕ
_
Terminates the expression and
displays its left end.
Checksum and length.
Leaves Equation mode.
Keys: Display: Description:
9 ()
Selects Radians mode.
Enters the limits of integration
(lower limit first).
Displays the function.
∫ _
Prompts for the variable of
integration.
∫
=
π
π
dttxxJ
0
0
)sincos(
1
)(