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Matrix Operations

 
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Semih



Joined: 30 Apr 2018
Posts: 8
PostPosted: Mon Oct 15, 2018 5:53 pm    Post subject: Matrix Operations Reply with quote
Hi,

Are there subroutines in Silverfost library to inverse - add - substract - multiply matrix for nxn dimensions ( n>1000)

Thank you.
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PaulLaidler
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Joined: 21 Feb 2005
Posts: 8018
Location: Salford, UK
PostPosted: Mon Oct 15, 2018 8:20 pm    Post subject: Reply with quote
The FORTRAN language allows you to add and subtract arrays using whole arrays as in the statement

C = A + B

Standard FORTRAN also provides a function called MATMUL to multiply arrays.

For matrix inversion you will need a third party library such as LAPACK. You don't get this with FTN95/Plato. Here is a reference...

http://fortranwiki.org/fortran/show/Matrix+inversion
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Semih



Joined: 30 Apr 2018
Posts: 8
PostPosted: Mon Oct 15, 2018 8:26 pm    Post subject: Reply with quote
Thanks a lot.
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