In a sequence of numbers, a(1), a(2), a(3), ... , a(n), a(n+1), ...
he first differences are a(2) - a(1), a(3) - a(2), ... , a(n+1) - a(n) , ...
Alternatively, d the sequence of first differences is given by
d(n) = a(n+1) - a(n), n = 1, 2, 3, ...
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Difference between first shifting and second shifting theorem
To estimate the difference, you find the difference first. To find the difference, you subtract the numbers you are given. Then you estimate your final answer (the difference).
The phrase "first difference" is usually associated with a sequence of numbers: a(1), a(2), a(3), a(4), ... . The sequence may have a simple rule for generating the numbers , a complicated rule or, if it is a random sequence, no rule at all.The sequence of first differences is a(2)-a(1), a(3)-a(2), a(4)-a(3), ...
The difference depends on the integers. If the first integer is greater than the second then difference is positive. If the first integer is less than the second then difference is negative. For example 6-4 = +2; 4-6 = -2
The difference is 999,990