Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Ana ALEXANDRU
Often, in practice, one reaches to incalculable integrals, but which can be approximated by numerical methods. In fact, in terms of application, there is no need for the exact result, but for knowing its value with an accuracy no matter how good. In this paper we present two methods to approximate Riemann integrals: the method of rectangles and trapezoids method. After reviewing the theoretical results, we consider some applications, focusing on the precision of approximations.
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