A textbook of Computer Based Numerical and Statiscal Techniques part 2 ppsx

. than two variables, to expand the R.H.S. of above, we get 12 1 2 12 ( , , )  ∂∂ ∂ +δ = + δ +δ + +δ  ∂∂ ∂  nn n XX X XXfxx x x x x xx x + () () () 22 2 2 22 2 12 12 22 2 12 12 1 2 2 n n XX. divide 2 by 7, we get 0 .28 5714 a quotient which is a non- terminating decimal fraction. For using such a number in practical computation, it is to 2 COMPUTER BASED NUMERICAL AND STATISTICAL TECHNIQUES be. significant figures at each step of computation. At each step of computations, retain at least one more significant figure than that given in the data, perform the last operation, and then round off. 3.