Linsolve – HP 49g Graphing Calculator User Manual

Page 164

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UN

Type:

Command

Description:

Linearizes expressions involving exponential terms.

Access:

Exponential and logarithm, 0(И1)

Input:

An expression.

Output:

The linearized expression.

Flags:

Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).

Example:

Linearize the following expression:

x{e e )

Command:

L I N ( X * ( E X P { X ) * E X P ( Y ) ) ^ 4 )

Result:

X * E X P ( 4 X + 4 Y )

LINSOLVE

Type:

Command

Description:

Solves a system of linear equations.

Access:

Symbolic solve, 0 (S5V)

Input:

Level 2/Argument 1: An array of equations.

Level 1/Argument 2: A vector of the variables to solve for.

Output:

Level 3dtem 1: The system of equations.

Level 2/Item 2: A list of the pivot points.
Level Idtem 3: The solution.

Flags:

Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).

LNAME

Type:

Command

Description:

Returns the variable names contained in a symbolic
expression.

Access:

Catalog, (COT)

Input:

A symbolic expression.

Output:

A vector containing the variable names.

Computer Algebra Commands

Page 14-41

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