traumatic brain injury (tbi) is a significant public health concern in our country, because of placing in top three most common causes of death and substantial direct and indirect costs to society. the incidence of tbi in our country is 1.7 times of international incidence. traumatic brain injury induced by primary and secondary mechanisms that give rise to death and neurologic morbidity in pat...

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1 Recurrences A linear, first order recurrence is a problem of the form x(j) = a(j)x(j − 1) + y(j), x(1) = y(1) (x(0) = 0), 1 · · · · · · · −a(2) 1 · · · · · · · −a(3) 1 · · · · · · · −a(4) 1 · · · · · · · −a(5) 1 · · · · · · · −a(6) 1 · · · · · · · −a(7) 1 · · · · · · · −a(8) 1 Such a bidiagonal system of equations corresponds to the forward solution of a system Ax = y after LU–factorization o...