user interfacing a Fortran or C routine

## Syntax

    [s_1,s_2,...,s_lhs]=user(e_1,e_2,...,e_rhs)

## Description

With this command it is possible to use an external program as a Scilab command where `(s_1,s_2,...,s_lhs)` are the output variables and `(e_1,e_2,...,e_rhs)` are the input variables. To insert this command in Scilab one has to write a few lines in the `user` fortran subroutine of Scilab.

## See also

- call
- link