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Command: LAGRANGE {'342
6 7 8 9
, 8x"-63x‘+151X-60
Result;
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-
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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: LAP(EXP(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
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