HP 49g Graphing Calculator - Manual (Page 162)

Output: The resulting matrix.
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Example: Build a 2 x 3 matrix with ajj=i+2j.
Command: LCXM{2,3 , <<-»! J ' I + 2*J' >>)
Result:
3 5 7
4 6 8
LDEC
Type: Command
Description: Solves a linear differential equation with constant
coefficients, or a system of first order linear differential
equations with constant coefficients.
Access: Symbolic solve, 0 (S5V)
Input: Level 2/Argmnent 1: For a single equation, the function
fonning the right hand side of the equation. For a system
of equations, an array comprising the tenns not
containing the dependent variables.
Level 1/Argnment 2: For one equation, the auxiliary
polynomial. For a system of equations, the matrix of
coefficients of the dependent variables.
Output: The solution.
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
LEGENDRE
Type: Fimction
Description: Returns the nth degree Legendre polynomial.
Access: Arithmetic, RiWfH) POLYNOMIAL
Input: An integer, n.
Output: The nth Legendre polynomial.
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Example: Find the Legendre polynomial with degree 4.
Computer Algebra Commands Page 14-39