HP 49g Graphing Calculator - Manual (Page 160)

Command: LAGRANGE { ' 3 4 2
6 7 8 9
„ , 8 x " - 6 3 x ‘ + 1 5 1 X - 6 0
Result; ------------- --------------
LAP
Type: Fimction
Description: Performs a Laplace transform on an expression with
respect to the current default variable.
Access: Calculus, R(ClC) DIFFERENTIAL EQNS
Input: An expression.
Output: The Laplace transform of the expression.
Flags: Exact mode must be set (flag -105 clear).
Nmneric mode must not be set (flag -03 clear).
Example: Find the Laplace transform of o'*.
Command: L A P ( E X P ( X ) )
Result: 1 / ( X - 1 )
LAPL
Type: Command
Description: Returns the Laplacian of a fimction with respect to a list
of variables.
Access: RPJ) DERIV & INTEG
Input: Level 2/Argument l:An expression.
Level 1/Argument 2; A vector of variables.
Output: The Laplacian of the expression with respect to the
variables.
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Example; Find, and simplify, the Laplacian of the following
expression:
i’’'cOS(z>’)
Computer Algebra Commands Page 14-37