Questions about interfacing Mathematica and Fortran. This also includes conversion of Fortran style numbers to Mathematica style.

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28
votes
1answer
1k views

Linking FORTRAN with Librarylink

FORTRAN code can be called using MathLink or .NET/Link (see the link for a worked examples). But as mentioned in a talk by T.Gayley and J.Klein in Wolfram Technology Conference 2011, LibraryLink, ...
20
votes
2answers
2k views

How can I get Mathematica to produce better Fortran code?

I am new to Mathematica and I am trying to get to it to produce some expressions in Fortran code. However, it seems that Mathematica will output duplicated expressions, that is, expressions the need ...
7
votes
2answers
925 views

How to change an expression to Fortran90 form?

I have a large expression produced by Mathematica. To use this expression in my Fortran program I need to change it to a Fortran90 form. I am not satisfied with the ...
6
votes
0answers
102 views

Where is f2mma.zip, Fortran to Mathematica converter?

I want to convert the SOFA libraries to Mathematica, and found out about f2mma, a Fortran to Mathematica converter. Google points to many papers about f2mma, but the only link to the software ...
5
votes
1answer
390 views

How to create FORTRAN Cell?

I want to create a FORTRAN cell in Mathematica. ...
5
votes
1answer
70 views

Customized FortranForm output

Let's take the following example V = (-G*Mn)/Sqrt[x^2 + y^2 + z^2 + cn^2]; Vx = D[V, x]; FortranForm[Vx] The result is ...
5
votes
1answer
339 views

How to load FORTRAN libraries through Librarylink

First, the main reference is the thread Linking FORTRAN with Librarylink, which teaches how to make the link between a FORTRAN subroutine and a Mathematica code, by using Librarylink. This must done ...
5
votes
0answers
142 views

Output most efficient Fortran code by mathematica

I am trying to output most efficient Fortran code by mathematica 9.0 with the method Simon provided: How can I get Mathematica to produce better Fortran code? The expressions is as follows: ...
2
votes
1answer
214 views

Using FortranForm for d0 notation? [duplicate]

When I use FortranForm, it changes 2*a^2 into 2*a**2 which is fine, but if I want the expression in a form such as, 2.d0*a**2 which represents an integer to be ...
1
vote
2answers
100 views

ToExpression and Fortran notation

ToExpression["9.0E-03"] interprets the string as 9*e - 3 instead of what I am expecting: ...
1
vote
1answer
117 views

How to get output in a specified format

In Fortran, we can easily get the stardard and easy output format. Now, we only focus on the Integer output. See here How to realize this kind of output as formatted text file using Mathematica ? ...
1
vote
1answer
138 views

Using FortranForm

I need to use in Fortran, matrices that I create in Mathematica, therefore, I need to format them, so that Fortan can understand them. I focus on the simplest example: Let's say I have tha matrix A ...
1
vote
1answer
96 views

Insert a linebreak and character repeatedly into a matrix output which is in fortranForm

Suppose I have a very long string which is a11 element of matrix a11=2*gopsv-2*Bgopsvw+2*acgmops*v+2*cgmopsv*B-2*acgmopsvB+3*gmopsvB-3*BgmopsvwB+m*w2*B +5*acgm2 +opsvB -ac*m2*w2*B +cgm2*opsvB* - ...
1
vote
0answers
39 views

How to show Output of matrix in FortranForm with “&” character?

I have a matrix. and i have shown the output of matrix one by one element in FortranForm. the problem is i want to put "&" continuation charater in output because when i am copying the data into ...
1
vote
0answers
133 views

Format Mathematica complex number for fortran code use [closed]

I'm using Mathematica 10. I am trying to write into a file complex number output to then be read by a Fortran code. But when I do : ...
1
vote
1answer
303 views

Latest Mathematica 9.0 can't use Format.m to generate optimized Fortran code [closed]

Before updating to Mathematica 9.0, I have successfully generated beautiful Fortran code using Mark Sofroniou's Format.m package, which is posted on MathSource. ...
0
votes
3answers
433 views

Formatting Fortran complex number output for use in Mathematica

Here is a list that was orignially output from Fortran. {{"(0.277336296055697, 0.120000000000000E+000)"}, {"(-1.489297392708939E-002, 0.340000000000000E+000)"}} ...
0
votes
2answers
92 views

How to show output of a matrix in m(1,1)=a11 m(1,2)=a12 …in this way…i have 50 *50 size matrix

How to show output of a matrix in m(1,1)=a11 m(1,2)=a12 ...in this way......i have 50 *50 size matrix so i want to do it efficiently. output to be shown like m(1,1)=a11 (in fortranForm) m(1,2)=a12 ...
0
votes
2answers
90 views

Output of matrix in FortranForm

matr2 = Table[FortranForm[matr[[i, j]]], {i, 4}, {j, 6}] but i want output to be more like this matrix(1,1)=a11 output in ...
0
votes
0answers
35 views

hOW TO PUT '&' OPERATOR in output of matrix elements that are in FortranForm?

i have matrix and i have shown the output in fortranForm. but due to large characters in elements of matrix, when i copied the data into fortran Code, it does not take copied data because of line ...
-1
votes
0answers
154 views

Discrepancy between Mathematica and Fortran expressions — Fortran gives wrong output (C,C++ programmer trying to use Fortran) [closed]

I typically program in C or C++, but recently wrote some code in Fortran. I am worried that I've made a mistake in the Fortran code due to lack of knowledge of Fortran. I basically need to plot two ...