HP 33s - Manual (Page 125)

Integrating Equations 8–3
Find the Bessel function for x–values of 2 and 3.
Enter the expression that defines the integrand's function:
cos (x sin t )
Keys: Display: Description:
{ c {}
{&}
 Clears memory.
| H Current equation or
   ! ! 
Selects Equation mode.
R L X  1%¾ Types the equation.
z O
 1%º 1¾
L T  1%º 1!¾
| ` | `
 1%º 1!22¾
‘
 1%º 1!22 Terminates the expression
and displays its left end.
| 
/
/ Checksum and length.
‡
 Leaves Equation mode.
Now integrate this function with respect to t from zero to π ; x = 2.
Keys: Display: Description:
Ÿ { }  Selects Radians mode.
0 ‘ | N
)  Enters the limits of integration
(lower limit first).
| H
 1%º 1!22 Displays the function.
| 
³  G_ Prompts for the variable of
integration.
T %@
value Prompts for value of X.
2 g
 ! !
³ /
)

x = 2. Starts integrating;
calculates result for
³
π
0
) (t f
| N q
)  The final result for J
0
(2).