Texas Instruments TINSPIRE Reference Guide - Page 93

rowDim, Catalog &gt, rowNorm, rowSwap, Matrix, expression, rIndex1

Get Texas Instruments TINSPIRE PDF manuals and user guides View all Texas Instruments TINSPIRE manuals
Add to My Manuals
Save this manual to your list of manuals

Page 93 highlights

rowDim( ) rowDim(Matrix) ⇒ expression Returns the number of rows in Matrix. Note: See also colDim(), page 17. rowNorm( ) rowNorm(Matrix) ⇒ expression Returns the maximum of the sums of the absolute values of the elements in the rows in Matrix. Note: All matrix elements must simplify to numbers. See also colNorm(), page 17. rowSwap( ) rowSwap(Matrix1, rIndex1, rIndex2) ⇒ matrix Returns Matrix1 with rows rIndex1 and rIndex2 exchanged. rref( ) rref(Matrix1[, Tol]) ⇒ matrix Returns the reduced 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: 5EL14 ·max(dim(Matrix1)) ·rowNorm(Matrix1) Note: See also ref(), page 82. Catalog > Catalog > Catalog > Catalog > TI-Nspire™ Reference Guide 87

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
TI-Nspire™ Reference Guide
87
rowDim()
Catalog >
rowDim(
Matrix
)
⇒
expression
Returns the number of rows in
Matrix
.
Note:
See also
colDim()
, page 17.
rowNorm()
Catalog >
rowNorm(
Matrix
)
⇒
expression
Returns the maximum of the sums of the absolute values of the
elements in the rows in
Matrix
.
Note:
All matrix elements must simplify to numbers. See also
colNorm()
, page 17.
rowSwap()
Catalog >
rowSwap(
Matrix1
,
rIndex1
,
rIndex2
)
⇒
matrix
Returns
Matrix1
with rows
rIndex1
and
rIndex2
exchanged.
rref()
Catalog >
rref(
Matrix1
[
,
Tol
]
)
⇒
matrix
Returns the reduced 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
L
14
·
max(dim(
Matrix1
))
·
rowNorm(
Matrix1
)
Note:
See also
ref()
, page 82.