Texas Instruments NS/CLM/1L1/B Reference Guide - Page 72

Matrix1, matrix, Value1, Value2, value, List1, List2, Matrix2

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Page 72 highlights

ref( ) ref(Matrix1[, Tol]) ⇒ matrix Returns the row echelon form of Matrix1. 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: 5Eë14 ·max(dim(Matrix1)) ·rowNorm(Matrix1) Note: See also rref(), page 69. remain( ) remain(Value1, Value2) ⇒ value remain(List1, List2) ⇒ list remain(Matrix1, Matrix2) ⇒ matrix Returns the remainder of the first argument with respect to the second argument as defined by the identities: remain(x,0)  x remain(x,y)  xNy·iPart(x/y) As a consequence, note that remain(Nx,y)  Nremain(x,y). The result is either zero or it has the same sign as the first argument. Note: See also mod(), page 49. Return Return [Expr] Returns Expr as the result of the function. Use within a Func...EndFunc block. Note: Use Return without an argument within a Prgm...EndPrgm block to exit a program. Note for entering the example: In the Calculator application on the handheld, you can enter multi-line definitions by pressing @ · instead of at the end of each line. On the computer keyboard, hold down Alt and press Enter. right( ) right(List1[, Num]) ⇒ list Returns the rightmost Num elements contained in List1. If you omit Num, returns all of List1. Catalog > Catalog > Catalog > Catalog > 66 TI-Nspire™ Reference Guide

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66
TI-Nspire™ Reference Guide
ref()
Catalog >
ref(
Matrix1
[
,
Tol
]
)
⇒
matrix
Returns the row echelon form of
Matrix1
.
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
ë
14
·
max(dim(
Matrix1
))
·
rowNorm(
Matrix1
)
Note:
See also
rref()
, page 69.
remain()
Catalog >
remain(
Value1
,
Value2
)
⇒
value
remain(
List1
,
List2
)
⇒
list
remain(
Matrix1
,
Matrix2
)
⇒
matrix
Returns the remainder of the first argument with respect to the
second argument as defined by the identities:
remain(x,0)
x
remain(x,y)
x
N
y
·
iPart(x/y)
As a consequence, note that
remain(
N
x,y
)
N
remain(
x,y
)
. The
result is either zero or it has the same sign as the first argument.
Note:
See also
mod()
, page 49.
Return
Catalog >
Return
[
Expr
]
Returns
Expr
as the result of the function. Use within a
Func
...
EndFunc
block.
Note:
Use
Return
without an argument within a
Prgm
...
EndPrgm
block to exit a program.
Note for entering the example:
In the Calculator application
on the handheld, you can enter multi-line definitions by pressing
@
instead of
·
at the end of each line. On the computer
keyboard, hold down
Alt
and press
Enter
.
right()
Catalog >
right(
List1
[
,
Num
]
)
⇒
list
Returns the rightmost
Num
elements contained in
List1
.
If you omit
Num
, returns all of
List1
.