Texas Instruments NS/CLM/1L1/B Reference Guide - Page 29

Expression, Function, Param1, Param2, Block, Program, squareMatrix, expression, matrix, rowMatrix,

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Define LibPub Define LibPub Var = Expression Define LibPub Function(Param1, Param2, ...) = Expression Define LibPub Function(Param1, Param2, ...) = Func Block EndFunc Define LibPub Program(Param1, Param2, ...) = Prgm Block EndPrgm Operates the same as Define, except defines a public library variable, function, or program. Public functions and programs appear in the Catalog after the library has been saved and refreshed. Note: See also Define, page 22, and Define LibPriv, page 22. DelVar DelVar Var1[, Var2] [, Var3] ... Deletes the specified variables from memory. det( ) det(squareMatrix[, Tol]) ⇒ expression Returns the determinant of squareMatrix. Optionally, any matrix element is treated as zero if its absolute value is less than Tol. This tolerance is used only if the matrix has floatingpoint entries and does not contain any symbolic variables that have not been assigned a value. Otherwise, Tol is ignored. /· • If you use or set the Auto or Approximate mode to Approximate, computations are done using floatingpoint arithmetic. • If Tol is omitted or not used, the default tolerance is calculated as: 5EM14 ·max(dim(squareMatrix))· rowNorm(squareMatrix) diag( ) diag(List) ⇒ matrix diag(rowMatrix) ⇒ matrix diag(columnMatrix) ⇒ matrix Returns a matrix with the values in the argument list or matrix in its main diagonal. diag(squareMatrix) ⇒ rowMatrix Returns a row matrix containing the elements from the main diagonal of squareMatrix. squareMatrix must be square. TI-Nspire™ Reference Guide Catalog > Catalog > Catalog > Catalog > 23

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TI-Nspire™ Reference Guide
23
Define LibPub
Catalog >
Define LibPub
Var
=
Expression
Define LibPub
Function
(
Param1
,
Param2
,
...
) =
Expression
Define LibPub
Function
(
Param1
,
Param2
,
...
) = Func
Block
EndFunc
Define LibPub
Program
(
Param1
,
Param2
,
...
) = Prgm
Block
EndPrgm
Operates the same as
Define
, except defines a public library
variable, function, or program. Public functions and programs appear
in the Catalog after the library has been saved and refreshed.
Note:
See also
Define
, page 22, and
Define LibPriv
, page 22.
DelVar
Catalog >
DelVar
Var1
[
,
Var2
]
[
,
Var3
] ...
Deletes the specified variables from memory.
det()
Catalog >
det(
squareMatrix
[
,
Tol
]
)
⇒
expression
Returns the determinant of
squareMatrix
.
Optionally, any matrix element is treated as zero if its absolute value
is less than
Tol
. This tolerance is used only if the matrix has floating-
point entries and does not contain any symbolic variables that have
not been assigned a value. Otherwise,
Tol
is ignored.
•
If you use
/·
or set the
Auto or Approximate
mode to Approximate, computations are done using floating-
point arithmetic.
•
If
Tol
is omitted or not used, the default tolerance is calculated
as:
5E
M
14
·
max(dim(
squareMatrix
))
·
rowNorm(
squareMatrix
)
diag()
Catalog >
diag(
List
)
⇒
matrix
diag(
rowMatrix
)
⇒
matrix
diag(
columnMatrix
)
⇒
matrix
Returns a matrix with the values in the argument list or matrix in its
main diagonal.
diag(
squareMatrix
)
⇒
rowMatrix
Returns a row matrix containing the elements from the main diagonal
of
squareMatrix
.
squareMatrix
must be square.