[petsc-users] Complex Number - VecScale

[Abdul Hanan Sheikh]

Thanks! :) 

I have an other query.  

By using VecScale on vector "x" with scalar "alpha", it overwrites the vector "x" with "alpha \times x" . 

Can we re-use the vector "x" after scaling ? 


thanks, 

 
Abdul




>________________________________
> From: Shri <abhyshr at mcs.anl.gov>
>To: Abdul Hanan Sheikh <hanangul12 at yahoo.co.uk>; PETSc users list <petsc-users at mcs.anl.gov> 
>Sent: Monday, 16 April 2012, 19:20
>Subject: Re: [petsc-users] Complex Number
> 
>
>http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PetscOptionsGetScalar.html
>
>>________________________________
>
>Dear users n devlopers, 
>>
>>
>>My Petsc routine contans a complex number, as a parameter of my problem. 
>>
>>I need to provide it at the run time options, since I intend to test a variety of parameter.
>>In this regard, I read that PetscScalar is the way to declare a complex number. 
>>If I need merely a complex number at run time option to compile a compact routine, 
>>
>>any details from any examples of libraries ? 
>>
>>
>>
>>Thanks in anticipation. 
>>
>>
>>Abdul,
>>
>
>
>
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