HP 48g Graphing Calculator - Manual (Page 248)

functions, labeled with “A” in appendix G. For example,
Sums, differences, negations, and other selected patterns
of such functions. For example, ' S I N < X > - C O S < K > '
Derivatives of all built-in functions. For example, ' I H V < 1+X"'
Polynomials whose base term is linear. For example, ’ < x - - 3 ;
1. Press
ff^iSYMBOLIC)
to open the fori
20 gINTESRflTEj
ERPR: I
VRR: LD:
result :
Symbolic
ENTER ERPRESSIUN___________________
The Symbolic INTEGRATE Screen.
2. Enter the expression to be integrated in the EXPFGi field (without
the integral sign).
3. Enter the variable of integration in the VflR= field.
4. Enter the limits of integration in the LC
m
: and HI“ fields. If you
want to use formal variables for limits, be sure that the variables do
not exist in the current directory.
5. Make sure the R E S U L T field says S y m b o l ic: (press [V-), if
necessary.)
6.
Press
IJK
to compute the integral. If the result is a closed-form
expression—if there is no ..i" sign in the result—the symbolic
integration was successful. If the result still contains ..r, you can try-
rearranging the expression and evaluating again. If rearranging fails
to produce a closed-form result, you can estimate the answer with
numeric integration or approximate the symbolic integral using a
Taylor’s polynomial (see “Taylor Polynomial Approximation,” on
page 20-12).
20-8 Calculus and Symbolic Manipulation