The variable is not being assigned a value for some reason. (MATLAB)
 

<p>For some reason, result_spmd is not being assigned a value and I am not sure what I have done wrong. Can someone please help me?</p>

<pre><code>spmd(4)
interval_size = (finish-start) / No_intervals;
range = finish - start;
start_spmd = ((labindex - 1) * (range/4)) + start;
finish_spmd = start_spmd + (range/4);
fprintf ("Worker %d will count from %f to %f ", labindex, start_spmd, finish_spmd );


for x = start_spmd:interval_size:(finish_spmd - interval_size)
result_spmd = result_spmd + 0.5 * ( Function_to_Integrate(x) + Function_to_Integrate(x+interval_size) ) * interval_size; %Issue is on this line
end

end

fprintf ("The value from worker 1 is %f\n", result_spmd{1} );
fprintf ("The value from worker 2 is %f\n", result_spmd{2} );
fprintf ("The value from worker 3 is %f\n", result_spmd{3} );
fprintf ("The value from worker 4 is %f\n", result_spmd{4} );
result_total = ( result_spmd{1} + result_spmd{2} + result_spmd{3} + result_spmd{4} );
% Display the answer
fprintf("The integral of x^2 is %f arbituary units\n\n",result_total);
toc

% This is the funtion you will be integrating (y=x^2)
function y = Function_to_Integrate(x)
y = x*x;
end
</code></pre>



[url=https://stackoverflow.com/questions/59038444/the-variable-is-not-being-assigned-a-value-for-some-reason-matlab]More answer...[/url]