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Scilab help >> Sparse Matrix > spget

spget

retrieves entries of sparse matrix

Calling Sequence

[ij,v,mn]=spget(sp)

Arguments

sp

real, complex or boolean sparse matrix

ij

two columns integer matrix (indices of non-zeros or true entries)

mn

integer vector with two entries (row-dimension, column-dimension)

v

column vector

Description

spget is used to convert the internal representation of sparse matrices into the standard ij, v representation.

Non zero entries (or entries set to true for a boolean sparse matrix) of sp are located in rows and columns with indices in ij.

Examples

sp=sparse([1,2;4,5;3,10],[1,2,3])
[ij,v,mn]=spget(sp);

See Also

  • sparse — sparse matrix definition
  • sprand — sparse random matrix
  • speye — sparse identity matrix
  • lufact — sparse lu factorization
<< speye Sparse Matrix spones >>

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Last updated:
Wed Oct 05 12:09:57 CEST 2011