For more information – HP 33s User Manual
Page 130
8–8
Integrating
Equations
{}
)
Restores Degrees mode.
This uncertainty indicates that the result might be correct to only three decimal
places. In reality, this result is accurate to seven decimal places when compared
with the actual value of this integral. Since the uncertainty of a result is calculated
conservatively, the calculator's approximation in most cases is more accurate than
its uncertainty indicates
.
For More Information
This chapter gives you instructions for using integration in the HP 33s over a wide
range of applications. Appendix E contains more detailed information about how
the algorithm for integration works, conditions that could cause incorrect results
and conditions that prolong calculation time, and obtaining the current
approximation to an integral.