86
The + Function: Take
CIJ
Monadic (One-Argument) Form
There
is
no monadic form.
Dyadic (Two-Argument) Form: Take
At
8
The
take function result
is
the
number
of
elements specified
by
argument
A, taken
from
argument
B.
Argument B can be a scalar, vector,
or
other
array. Argument A
must be a scalar
or
vector
of
integers.
If
argument B
is
a vector, argument A must
be
a scalar. Argument A must be a vector with an
element
for each coordinate
of
argument
B.
When argument A
is
positive,
the
first elements
of
argument B
are
taken;
when argument A
is
negative,
the
last elements are taken.
If
argument
A specifies more elements
than
the
number
of
elements
in
argument
B,
the
result
is
padded with
O's
(or blanks for character data). The shape
of
the
result
is
the
value
of
A:
:~
"':~t:l,
2
7t:l.
2 3
I",
~3
t
23'+5
00
"'7tt
2 3
'+
5
00
1
:~34,5
:1,
'")
A"
5
6
B~3
~pl
2 3
~
5 6 7 8 9
10 11
12
B
~5
'+
"1
8
9
10
1.1
:1.2
:I.
!:5
1-
'.~
7
10
1
1
7
1
'+
"1
1.0
2
5
'1
.:..
6
2
5
B
1:1,
3
6
8
1t
2
~5tB
3
'7
Bf-2
,')
.:..
3~)
1.
2 3 4 5 6 7 8 9 10
:1.1
12
B
3
6
9
:l2
1
1
:L
tB
")
.:..
1-
1tB
1 2
3tB
"'1
2
3tB
9
:1,2
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