# Feature Request **URL:** https://community.freefem.org/c/features-request/6.md?page=2 [Latest](https://community.freefem.org/latest.md) · [Categories](https://community.freefem.org/categories.md) **Page:** 3 --- ## [Multiphysics in LI-ion batteries : how hard to implement?](https://community.freefem.org/t/multiphysics-in-li-ion-batteries-how-hard-to-implement/495)
**Author:** [@mbletry](https://community.freefem.org/u/mbletry)\ **Replies:** 7\ **Last updated:** [July 7, 2020, 5:13pm UTC](https://community.freefem.org/t/multiphysics-in-li-ion-batteries-how-hard-to-implement/495 "2020-07-07T17:13:11Z")
Hi, I am not entirely sure this is exactly a request for new features… my question is this : to what extent is it possible to model multiphysics application for Li-ion battery, i.e. needing : nonlinear mechanics elect… --- ## [PNG, JPG, BMP or even PDF](https://community.freefem.org/t/png-jpg-bmp-or-even-pdf/259)
**Author:** [@Larik](https://community.freefem.org/u/Larik)\ **Replies:** 1\ **Last updated:** [May 25, 2020, 9:03am UTC](https://community.freefem.org/t/png-jpg-bmp-or-even-pdf/259 "2020-05-25T09:03:30Z")
Now the eps-format was realized, the command plot(u, wait=1, jpg=“fig1.eps”); works perfect. But there is some difficulties with eps-files in MS Windows. Would you be so pleasant to realize within “plot” saving into fo… --- ## [A REPL for freefem](https://community.freefem.org/t/a-repl-for-freefem/376)
**Author:** [@nicolas-ratier](https://community.freefem.org/u/nicolas-ratier)\ **Replies:** 1\ **Last updated:** [April 30, 2020, 5:36pm UTC](https://community.freefem.org/t/a-repl-for-freefem/376 "2020-04-30T17:36:14Z")
Hello, Currently, freefem is a batch program. It would be nice if freefem would be integrated into a REPL. In this way, it could be piped from other programs, by example, be called powerfully by Julia, Matlab, Octave… --- ## [3D analogue of intalledges etc](https://community.freefem.org/t/3d-analogue-of-intalledges-etc/78)
**Author:** [@alozinski](https://community.freefem.org/u/alozinski)\ **Replies:** 2\ **Last updated:** [February 5, 2020, 7:14am UTC](https://community.freefem.org/t/3d-analogue-of-intalledges-etc/78 "2020-02-05T07:14:39Z")
Hi, I’m trying to explore some stabilized FE schemes involving the integrals of gradient jumps over the mesh facets. This works fine in 2D with intalledges. I know that the 3D analogue intallfaces exists but it does not… --- ## [Mesh generation - boundary conditions - command cube](https://community.freefem.org/t/mesh-generation-boundary-conditions-command-cube/214)
**Author:** [@Lisa](https://community.freefem.org/u/Lisa)\ **Replies:** 1\ **Last updated:** [January 14, 2020, 11:05am UTC](https://community.freefem.org/t/mesh-generation-boundary-conditions-command-cube/214 "2020-01-14T11:05:03Z")
Hello everyone, I am currently trying to simulate on a cube a coupling of two problems. For this, I have retrieved the mesh given as an example on the site : https://doc.freefem.org/documentation/mesh-generation.html#t… --- ## [FORTRAN version of libff-mmap-semaphore.c](https://community.freefem.org/t/fortran-version-of-libff-mmap-semaphore-c/124)
**Author:** [@gfnallo](https://community.freefem.org/u/gfnallo)\ **Replies:** 2\ **Last updated:** [September 4, 2019, 6:16am UTC](https://community.freefem.org/t/fortran-version-of-libff-mmap-semaphore-c/124 "2019-09-04T06:16:45Z")
Dear FreeFem++ developers, thanks first of all for the great work. I am interested in coupling a (large) Fortran code with a FreeFem++ application. I have been considering several options. As mentioned in the topic tit… --- ## [User defined quadrature](https://community.freefem.org/t/user-defined-quadrature/120)
**Author:** [@arousta](https://community.freefem.org/u/arousta)\ **Replies:** 0\ **Last updated:** [August 30, 2019, 12:55am UTC](https://community.freefem.org/t/user-defined-quadrature/120 "2019-08-30T00:55:25Z")
Presumably I think that users can define their own quadrature formula for integration, just exactly like elements. However, I couldn’t find anything in the documentation. If it is possible, I would appreciate to add the… --- ## [Plot() command option to show mesh connectivity](https://community.freefem.org/t/plot-command-option-to-show-mesh-connectivity/47)
**Author:** [@arousta](https://community.freefem.org/u/arousta)\ **Replies:** 4\ **Last updated:** [May 9, 2019, 8:24am UTC](https://community.freefem.org/t/plot-command-option-to-show-mesh-connectivity/47 "2019-05-09T08:24:50Z")
I’m writing a code which calculates a lot of geometric info about mesh (like for a flux limiter). It would be very very useful that the plot(Th) had an option to show vertices/cells/borders numbers. Like the figure in do… --- ## [About the interface to petsc](https://community.freefem.org/t/about-the-interface-to-petsc/37)
**Author:** [@guoliang](https://community.freefem.org/u/guoliang)\ **Replies:** 2\ **Last updated:** [May 8, 2019, 2:32am UTC](https://community.freefem.org/t/about-the-interface-to-petsc/37 "2019-05-08T02:32:03Z")
I want to learn more about how to use the interface of PETSc to solve a problem using domain decomposition. From the file hpddm of Freefem Source, I don’t know how to use the preconditioner designed by ourself and how t… [Previous page](https://community.freefem.org/c/features-request/6.md?page=1)