+ Post New Thread
Page 1 of 13 1 2 3 11 ... LastLast
Threads 1 to 20 of 259

Forum: Fortran Library

Fortran Library information and discussions

  1. 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: 7,447
    11-11-2015, 11:31 AM Go to last post
  2. 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: 435
    07-31-2015, 08:57 AM Go to last post
  3. 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: 4,593
    05-26-2015, 07:43 AM Go to last post
  4. 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: 211
    05-05-2015, 10:19 PM Go to last post
  5. 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: 316
    04-21-2015, 04:44 PM Go to last post
  6. 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: 186
    04-20-2015, 05:09 AM Go to last post
  7. 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: 351
    01-25-2015, 05:00 PM Go to last post
  8. 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: 469
    09-28-2014, 12:01 PM Go to last post
  9. 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: 535
    06-11-2014, 02:47 PM Go to last post
  10. 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: 603
    04-14-2014, 11:35 AM Go to last post
  11. 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: 583
    02-16-2014, 07:04 AM Go to last post
  12. 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: 4,159
    02-06-2014, 02:35 PM Go to last post
  13. 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: 345
    01-26-2014, 02:54 PM Go to last post
  14. 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: 382
    11-24-2013, 03:26 PM Go to last post
  15. 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: 412
    11-22-2013, 06:01 PM Go to last post
  16. 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: 478
    08-30-2013, 03:37 PM Go to last post
  17. 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: 1,070
    08-22-2013, 10:33 AM Go to last post
  18. 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: 588
    08-20-2013, 02:37 AM Go to last post
  19. solve linear equation system faster

    Hi I have a code in intel fortran 2011, in this code several AX=B linear equation systems should be solved, "A" matrx is real and not sparse. I've...

    Started by Marzieh‎, 07-10-2013 07:50 AM
    • Replies: 0
    • Views: 466
    07-10-2013, 07:50 AM Go to last post
  20. Thread data sharing using IMSL and OpenMP

    Hello, I have to run a series of minimizations for the same function but with different argument values. I achieve this in a do-loop and I am...

    Started by cjb_1‎, 05-23-2013 12:37 PM
    • Replies: 1
    • Views: 688
    07-08-2013, 12:12 PM Go to last post

+ Post New Thread

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 150 views
Hot thread with unread posts
More than 15 replies or 150 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts