// Lab2.txt

function foo = f(t)
	foo = 5*t + (sin(9*t-5)/t);
endfunction

start = input("Enter a number for the start value.\n");
stop = input("Enter a number for the stop value.\n");
steps = input("Enter a number for the step value.\n");

delta_t = (stop - start) / steps;	

	total = 0;
	for i=0:(steps-1),
		t = start + i*delta_t;
		total = total + f(t);
	end
	
	total = total * delta_t;
	printf("Rectangular integration value %f.\n",total);