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951 bytes added ,  11:28, 14 March 2014
information about images and linear algebra libraries
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  zypper ar http://download.opensuse.org/repositories/science/<openSUSE version>/ Science
 
  zypper ar http://download.opensuse.org/repositories/science/<openSUSE version>/ Science
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zypper ref
 
  zypper in octave
 
  zypper in octave
   −
There <openSUSE verion> is your version of openSUSE, for example {{codeline|openSUSE_13.1}}.
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There <openSUSE verion> is your version of openSUSE, for example {{codeline|openSUSE_13.1}}
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===Linear algebra libraries===
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openSUSE uses reference BLAS and LAPACK implementations by default, but ATLAS is usually much faster. You can switch it by update-alternatives mechanism:
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/usr/sbin/update-alternatives --config libblas.so.3
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/usr/sbin/update-alternatives --config liblapack.so.3
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Example:
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  Selection    Path                            Priority  Status
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------------------------------------------------------------
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* 0            /usr/lib64/libblas.so.3.4.2      50        auto mode
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  1            /usr/lib64/atlas/libsatlas.so.3  20        manual mode
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  2            /usr/lib64/atlas/libtatlas.so.3  20        manual mode
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  3            /usr/lib64/libblas.so.3.4.2      50        manual mode
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===Image export and import===
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GraphicsMagick++ library from openSUSE repositories was compiled with quantum depth 16 which limits reading and writing images to 16 bit. See more details on [[GraphicsMagick]] wiki page.
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