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function Scilab Group Scilab keyword function
NAME
function - opens a function definition endfunction - closes a function
definition
SYNTAX
function <lhs_arguments>=<function_name><rhs_arguments>
<statements>
endfunction
Where
<function_name> stands for the name of the function
<rhs_arguments> stands for the input argument list. It may be
- a comma separated sequence of variable names enclosed
in parenthesis, like (x1,...,xm). Last variable name
can be the key word varargin (see varargin)
- the sequence () or nothing,if the function has no
input argument.
<lhs_arguments> stands for the output argument list. It may be
- a comma separated sequence of variable names enclosed
in brackets, like [y1,...,yn]. Last variable name can
be the key word varargout (see varargout)
- the sequence [] ,if the function has no input
argument. In this case the syntax may also be:
function <function_name><rhs_arguments>
<statements> stands for a set of scilab instructions (statements)
DESCRIPTION
This syntax may be used to define function (see functions) inline or in a
script file (see exec). For compatibility with old Scilab versions,
functions defined in a script file containing only function definitions
can be "loaded" into Scilab using the getf function.
The function <lhs_arguments>=<function_name><rhs_arguments> sequence
cannot be split over several lines. This sequence can be followed by
statements in the same line if a comma of semi column is added at its
end.
function definitions can be nested
EXAMPLE
//inline definition (see function)
function [x,y]=myfct(a,b)
x=a+b
y=a-b
endfunction
[x,y]=myfct(3,2)
//a one line function definition
function y=sq(x),y=x^2,endfunction
sq(3)
//nested functions definition
function y=foo(x)
a=sin(x)
function y=sq(x), y=x^2,endfunction
y=sq(a)+1
endfunction
foo(%pi/3)
// definition in an script file (see exec)
exec SCI/macros/elem/asin.sci;
SEE ALSO
functions, exec, getf
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