Description

Macros are Scilab procedures ("macro", "function" and "procedure" have the save meaning). Usually, they are defined in files with an editor and loaded into Scilab by exec or through a library.

They can also be defined on-line (see deff). A file which contains a macro must begin as follows:

 
function [y1,...,yn]=foo(x1,...,xm)
 

The yi are output variables calculated as functions of input variables and variables existing in Scilab when the macro is executed. A macro can be compiled for faster execution. Collections of macros can be collected in libraries. Macros which begin with % sign (e.g. %foo) and whose arguments are lists are used to perform specific operations: for example, z=%rmr(x,y) is equivalent to z=x*y when x and z are rationals (i.e. x=list('r',n,d,[]) with n and d polynomials).

See Also