See also: | DUP, DUPN, DUP2, OVER, PICK, ROLL, ROLLD, ROT |
|
|
SYSEVAL | Command |
Type: | |
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: …µSYSEVAL
Input/Output:
Level 1/Argument 1 | Level 1/Item 1 |
|
|
#naddress | → |
Example: Display the version string of a calculator by executing #2F389h SYSEVAL. This should display
See also: EVAL, LIBEVAL, FLASHEVAL
SYLVESTERType: Command
Description: For a symmetric matrix A, returns D and P where D is a diagonal matrix and
A = PTDP
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 |
| Numeric mode must not be set (flag |
| Radians mode must be set (flag |
Example: | Rewrite in PTDP form the matrix: |
|
| 1 2 |
|
|
| 2 4 |
|
Command: |
|
|
|
SYLVESTER([1, 2][2, 4]) | |||
Result: | {[1, 0], [[1, 2][0, 1]]} |
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 |
| Numeric mode must not be set (flag |
| Full Command and Function Reference |