Array of logical 0 (false)
F = false(sz,arraytype)
F = false(sz,'like',P)
C = false(sz,codist)
C = false(sz,___,codist,'noCommunication')
C = false(sz,___,codist,'like',P)
F = false(sz, creates
a matrix with arraytype)false values in all elements.
The size and type of array are specified by the argument options according to the following table.
| Argument | Values | Descriptions |
|---|---|---|
sz | n | Specifies size as an n-by-n matrix. |
m,n or [m n] | Specifies size as an m-by-n matrix. | |
m,n,...,k or [m
n ... k] | Specifies size as an m-by-n-by-...-by-k array. | |
arraytype | 'distributed' | Specifies distributed array. |
'codistributed' | Specifies codistributed array, using the default distribution scheme. | |
'gpuArray' | Specifies gpuArray. |
F = false(sz,'like',P) creates
an array of false values with the same type as
array P.
C = false(sz,codist) creates
a codistributed array of false values with the
specified size. The codistributor object codist specifies
the distribution scheme for creating the codistributed array. For
information on constructing codistributor objects, see the reference
pages for codistributor1d and codistributor2dbc. To use the default
distribution scheme, you can specify a codistributor constructor without
arguments. For example:
spmd
C = false(8,codistributor1d());
endC = false(sz,___,codist,'noCommunication') specifies
that no interworker communication is to be performed when constructing
a codistributed array, skipping some error checking steps.
C = false(sz,___,codist,'like',P) creates
a codistributed array of false values with the
specified size and distribution scheme. If the codistributor argument
is omitted, the distribution scheme is taken from the codistributed
array P.
Create a 1000-by-1000 distributed array of falses
with underlying class double:
D = false(1000,'distributed');
Create a 1000-by-1000 codistributed matrix of falses,
distributed by its second dimension (columns).
spmd(4) C = false(1000,'codistributed'); end
With four workers, each worker contains a 1000-by-250 local
piece of C.
Create a 1000-by-1000 codistributed matrix of falses,
distributed by its columns.
spmd(4) codist = codistributor('1d',2,100*[1:numlabs]); C = false(1000,1000,codist); end
Each worker contains a 100-by-labindex local
piece of C.
Create a 1000-by-1000 gpuArray of falses:
G = false(1000,'gpuArray');