HP 50g User's Reference Manual
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Brand: HP
Category: Calculator
Type: Advanced user's reference manual
Model: HP 48gII , HP 49g+ , HP 50G
Pages: 693
Full Command and Function Reference 3-245
See also: DUP, DUPN, DUP2, OVER, PICK, ROLL, ROLLD, ROT
SYSEVAL
Type: Command
Description: Evaluate System Object Command: Evaluates unnamed operating system objects specified by
their memory addresses.
WARNING: Use extreme care when executing this function. Using SYSEVAL with
random addresses will almost always cause a memory loss. Do not use this function
unless you know what you are doing.
Access: …µ
SYSEVAL
Input/Output:
Level 1/Argument 1 Level 1/Item 1
#n
address
→
Example: Display the version string of a calculator by executing
#2F389h SYSEVAL
. This should
display
"HPHP49-C"
.
See also: EVAL, LIBEVAL, FLASHEVAL
SYLVESTER
Type: Command
Description: For a symmetric matrix A, returns D and P where D is a diagonal matrix and
A = P
T
DP
Access: !Ø
QUADF
Input: A symmetric matrix.
Output: Level 2/Item 1: the diagonal matrix, D.
Level 1/Item 2: The matrix P.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag –3 clear).
Radians mode must be set (flag –17 set).
Example: Rewrite in P
T
DP form the matrix:
1
2
2
4
Command:
SYLVESTER([1, 2][2, 4])
Result:
{[1, 0], [[1, 2][0, 1]]}
SYST2MAT
Type: Command
Description: Converts a system of linear equations in algebraic form to matrix form.
Access: !Ú
MATRX
, Matrices, !Ø
LINEAR SYSTEMS
Input: Level 2/Argument 1: A vector containing a system of linear equations. An expression with no
equal sign is treated as an equation setting the expression equal to zero.
Level 1/Argument 2: A vector whose elements are the system’s variables. The variables must not
exist in the current path.
Output: A matrix that represents the system of linear equations.
Flags: Exact mode must be set (flag –105 clear).
Numeric mode must not be set (flag –3 clear).