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Please note that the recommended version of Scilab is 6.0.2. This page might be outdated.
See the recommended documentation of this function

Scilab manual >> Scilab > Scilab keywords > global

global

Define global variable

Calling Sequence

global('nam1',...,'namn')
global nam1 ... namn

Arguments

nam1,..., namn

valid variable names

Description

Ordinarily, each Scilab function, has its own local variables and can "read" all variables created in the base workspace or by the calling functions. The global keyword allow to make variables read/write across functions. Any assignment to that variable, in any function, is available to all the other functions declaring it global.

If the global variable does not exist the first time you issue the global statement, it will be initialized to the empty matrix.

Examples

//first: calling environnment and a function share a variable
global a
a=1
deff('y=f1(x)','global a,a=x^2,y=a^2')
f1(2)
a
//second: three functions share variables
deff('initdata()','global A C ;A=10,C=30')
deff('letsgo()','global A C ;disp(A) ;C=70')
deff('letsgo1()','global C ;disp(C)')
initdata()
letsgo()
letsgo1()
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Last updated:
Wed Jan 26 16:23:36 CET 2011