1. "ans" shows the value of "absx" because that is the first output argument from the function my_first_function1. To suppress "ans" showing on the command line, terminate the call to my_first_function1 with a semicolon, like this:
my_first_function1();
2. In order to use "absx" and "absy" somewhere else, you have to assign their values to variables in the caller workspace (i.e., use the output arguments that my_first_function1 returns):
function my_first_subfunction1()
[absx,absy] = my_first_function1();
% do what you want to do with absx and absy ...
% (note that they don't have to be called absx and absy here, you could do this just as well:
% [x,y] = my_first_function1();
% and then do what you want with x and y.)
end
