HP 32SII Owner's Manual page 127

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).
Enter the expression that defines the integrand's function:
If the calculator attempted to evaluate this function at x = 0, the lower limit of
integration, an error (
algorithm normally does not evaluate functions at either limit of integration,
unless the endpoints of the interval of integration are extremely close together
or the number of sample points is extremely large.
Keys:
X
X
Now integrate this function with respect to x (that is, X) from zero to 2 (t = 2).
Keys:
{ }
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24
t
∫
=
S ) ( t (
i
0
sin
x
) would result. However, the integration
Display:
The current equation
or
Display:
Size : 17 .7 x 25.2 cm
sin x
) dx
x
x
Description:
Selects Equation mode.
Starts the equation.
The closing right parenthesis is
required in this case.
Terminates the equation.
Checksum and length.
Leaves Equation mode.
Description:
Selects Radians mode.
Integrating Equations 8–5