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Forum: Fortran Library

Fortran Library information and discussions

  1. fortran powerstation 4.0 with IMSL

    hello, How to associate IMSL with fortran powerstation 4.0? Is this possible? thanks rotor

    Started by rotor‎, 12-20-2006 07:02 PM
    • Replies: 5
    • Views: 7,548
    Yesterday, 04:41 AM Go to last post
  2. The file libimsl.a

    I am porting some old C code (which uses routines from the library libimsl.a) from Solaris to Linux. I am new to Visual Numerics' Software. The...

    Started by BobSoftwareGuy‎, 01-30-2009 02:01 PM
    • Replies: 6
    • Views: 4,075
    12-03-2015, 06:04 PM Go to last post
  3. IMSL Linear Programming and Matlab

    We have had a couple users inquire recently about converting their Matlab linear programming (linprog) code to use the new IMSL C Numerical Library...

    Started by ed‎, 04-27-2006 07:46 AM
    • Replies: 5
    • Views: 7,613
    11-11-2015, 11:31 AM Go to last post
  4. DEVCCG matrix diagonalization, general complex matrics

    I am using the IMSL subroutine DEVCCG for the diagonalization of general complex matrices and sometimes the program goes INTO but does not return...

    Started by Frank Szmulowicz‎, 07-31-2015 08:57 AM
    • Replies: 0
    • Views: 654
    07-31-2015, 08:57 AM Go to last post
  5. Fortran IMSL routine for Kronecker Product

    I am trying to find an ISML routine that can compute Kronecker product of two matrices. I search the ISML menu by the key word "Kronecker" and...

    Started by ljkao‎, 03-14-2009 04:50 PM
    • Replies: 3
    • Views: 4,771
    05-26-2015, 07:43 AM Go to last post
  6. Questions on the DNFFT_INT module (Kernel density estimation via FFT)

    Hi, Does the DNFFT_INT module consider the boundary correction in the kernel density estimation? It seems not, but if yes, what type of method is...

    Started by totohoy‎, 05-05-2015 10:19 PM
    dnfft, fortran, imsl, kernel density estimation
    • Replies: 0
    • Views: 309
    05-05-2015, 10:19 PM Go to last post
  7. Problems with ARPACK

    Dear All, I am having a problem regarding ARPACK: Specifically I use arpack_symmetric to calculate the k smallest eigenvalues of a generalized...

    Started by kyperros‎, 04-20-2015 05:10 AM
    • Replies: 3
    • Views: 436
    04-21-2015, 04:44 PM Go to last post
  8. Problems with ARPACK

    Dear All, I am having a problem regarding ARPACK: Specifically I use arpack_symmetric to calculate the k smallest eigenvalues of a generalized...

    Started by kyperros‎, 04-20-2015 05:09 AM
    • Replies: 0
    • Views: 269
    04-20-2015, 05:09 AM Go to last post
  9. Subroutine DMLIN

    Dear all I am looking for information on the following subroutine particularly a code listing within the IMSL Math Library (1982) there is a...

    Started by pikachuvnn‎, 01-23-2015 08:12 AM
    • Replies: 2
    • Views: 491
    01-25-2015, 05:00 PM Go to last post
  10. DAESL implementation problem

    Dear all, I am trying to change the solver for our system of ordinary differential equations from IVPAG to DAESL. My code is running flawlessly...

    Started by maximus‎, 09-15-2014 11:36 AM
    • Replies: 1
    • Views: 588
    09-28-2014, 12:01 PM Go to last post
  11. Bug in IVOAM

    I think that there is a bug in the IVOAM implementation in FNL7. If the differential equations are autonomous, with initial conditions y=y0 at t=t0,...

    Started by mecej4‎, 02-16-2014 06:56 AM
    • Replies: 2
    • Views: 660
    06-11-2014, 02:47 PM Go to last post
  12. How to decide of check the workspace of LSLXG in IMSL

    Hi everyone, I have a question about the value of workspace in IMSL. Now I use the function of LSLXG to solve a sparse system of linear equations....

    Started by jorsey‎, 04-02-2014 03:15 AM
    lslxg workspace iparam wk
    • Replies: 5
    • Views: 750
    04-14-2014, 11:35 AM Go to last post
  13. Am I missing an agument in IVOAM?

    I'm attempting to use IVOAM, a variable Adams Method, for a three dimensional 2nd order differential equation. I'm running IMSL Fortran Library ver....

    Started by starfighter‎, 02-13-2014 12:17 AM
    • Replies: 5
    • Views: 730
    02-16-2014, 07:04 AM Go to last post
  14. 3-dimension interpolation

    Has anyone used the 3-dimension interpolation tools such as bs3in? I typed in exactly the same codes as those in the IMSL Math/Library documention...

    Started by li1991‎, 06-19-2008 09:18 AM
    • Replies: 8
    • Views: 4,367
    02-06-2014, 02:35 PM Go to last post
  15. Unexpected behavior from BSINT

    Consider this example, which is almost the same as the manual example for BSINT, but with slightly different input data points, a different function...

    Started by mecej4‎, 01-26-2014 02:54 PM
    • Replies: 0
    • Views: 426
    01-26-2014, 02:54 PM Go to last post
  16. tol in differential equation solvers

    tol in differential equation solvers is said to control the local error so that the global error is proportional to tol. I have searched but the...

    Started by fortran90‎, 11-24-2013 03:26 PM
    • Replies: 0
    • Views: 487
    11-24-2013, 03:26 PM Go to last post
  17. Typographical error in listing of example program for LFTZG, FNL-7 manual

    The documentation for IMSL Fortran Library Version 7 (HTML and PDF version) shows, in the example program listing for Routine LFTZG: COMPLEX ...

    Started by mecej4‎, 11-22-2013 06:01 PM
    • Replies: 0
    • Views: 524
    11-22-2013, 06:01 PM Go to last post
  18. how to do LU factor of an s_hbc_sparse matrix

    This is the first time I have tried to use the sparse matrix features in IMSL. My matrix is sparse, symmetric, and positive definite. I want to do...

    Started by xlrotor‎, 08-30-2013 03:37 PM
    • Replies: 0
    • Views: 590
    08-30-2013, 03:37 PM Go to last post
  19. Finding the smallest zero

    I have a function that looks like this Is there a routine to find the smallest zero using imsl? I tried ZBREN but it does not get me the...

    Started by ignacio82‎, 11-21-2012 03:13 PM
    • Replies: 6
    • Views: 1,225
    08-22-2013, 10:33 AM Go to last post
  20. Rank of matrix function, rank(A), gives wrong results when used in Genetic Algorithm

    Dear friends, I have got the problem with function of 'rank' when using it as a function calculating rank of a matrix in subroutine which has been...

    Started by hoangxd‎, 08-20-2013 02:37 AM
    genetic algorithm, rank, rank of matrix
    • Replies: 0
    • Views: 706
    08-20-2013, 02:37 AM Go to last post

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