How to convert from FORTRAN TO MATLAB

Dear all,

Please am working on a project and now found a FORTRAN code to speed up my research but I having been using MATLAB and so, I need to convert the newly found FORTRAN code to MATLAB. Please kindly help me out on this conversion or give a detail explanation on how best I can convert from FORTRAN to MATLAB. The FORTRAN code is in the attachment. Thanks in anticipation!

[KSSV]

Options:

1. Convert the FORTRAN code to MATLAB line by line going through the code.
2. If problem is known, try knowing the inbuilt functions, toolboxes in MATLAB.

Answer 1

[Ameer Hamza]

I don't think you can automatically convert your FORTRAN code to MATLAB; however, you can compile it as mex file and use it in MATLAB.

https://www.mathworks.com/help/matlab/write-fortran-mex-files.html

https://www.mathworks.com/matlabcentral/answers/99689-how-can-i-interface-matlab-code-with-c-c-or-fortran

Answer 2

[Ben Barrowes]

My f2matlab can do this kind of conversion. Please download from the file exchange and give it a try. You will have to split the code up into the five files in the pdf and run f2matlab on each file.

I might also do a free conversion if I get time, but in any case, if you run into trouble PM me.

[Oluwaseyi Aliu]

Thanks so much for this, ve downloaded f2matlab but still dont understand how to use.

[Ben Barrowes]

See the README file after unzipping the f2matlab distribution.

[Oluwaseyi Aliu]

Ok, thank you sir; but the code is written with FORTRAN 77

[Ben Barrowes]

Yes, I see that. In the README file, it suggests using to_f90 or some other tool to convert to f90 format before trying f2matlab.

Let me see what I can do next week to provide a free but untested conversion with my tools.

[Oluwaseyi Aliu]

ok sir, thanks a bunch!

[roborrr]

I have 92 Fortran subroutines that call each other and are controlled by one main program, most of which have input and output data. is it possible to create a full-fledged executable file from this, which will run in matlab using the software you suggested in the letter: My f2matlab? If it's possible, could you give step by step instructions on how to implement this?

[Ben Barrowes]

Sure it's possible. Here are the major steps.

Convert all the programs to f90 format (also refactor all GOTO's).

Compile and run the fortran.

Use f2matlab on each routine.

Debug resulting matlab code.

Compile matlab code into an executable.

Email me at [e-mail] if you run into trouble.

[roborrr]

HI Ben Barrowes, Thank you so much for responding so kindly to my question. I'm just starting to study this topic and some questions arose that I could not solve on my own from the instructions you suggested. With your permission, I will later send questions in a personal mail that I have not resolved, after I try to solve it myself.

[Ben Barrowes]

Understood. Good luck Rob.

Answer 3

[Kuan-Lin Chen]

Program random

implicit double precision (a-h,o-z)

character(10) zinputname

parameter (nd1=501,nd2=250,nd3=257,nd4=1025)

dimension rff(nd1,nd1),x(nd1),y(nd1),s(nd2,nd2),per1(nd3,nd4)

dimension w1(nd2),w2(nd2),w11(nd2),w22(nd2),xx(nd2,nd2)

dimension h1(nd1),h2(nd1),v1(nd3),v2(nd4),per(nd3,nd4),ll(5)

dimension phi(nd2,nd2),f1(nd3),delta1(nd2,nd2),delta2(nd2,nd2)