MATLAB: How to use result of one function for another function?

Question

i want to use the results of one function for another function within the same or different file…plese help me how to do it….

sample program:

function [ y ] = heatsource( x1, x2 )
function [ x1, x2] = result( c, d )
c=2;
d=3;
x1=c+d;
x2=c-d;
end
y=x1+x2;
y
end

Answer 1

mainscript.m

c=2; d=3;
[ x1, x2] = result( c, d ) 
[ y ] = heatsource( x1, x2 )

result.m

   function [ x1, x2] = result( c, d )
   x1=c+d; 
   x2=c-d;

heatsource.m

   function [ y ] = heatsource( x1, x2 )  
    y=x1+x2;