کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4637225 | 1340736 | 2006 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On numerical improvement of open Newton–Cotes quadrature rules
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: On numerical improvement of open Newton–Cotes quadrature rules On numerical improvement of open Newton–Cotes quadrature rules](/preview/png/4637225.png)
چکیده انگلیسی
In this paper, we discuss about numerical improvement of the Open Newton–Cotes integration rules that are in forms of:∫a=x-1b=xn+1=x-1+(n+2)hf(x)dx≃∑k=0nBk(n)f(x-1+(k+1)h).It is known that the precision degree of above formula is n + 1 for even n′s and is n for odd n′s. However, if the integral bounds are considered as two additional variables (i.e. a and h in fact) we reach a nonlinear system that numerically improves the precision degree of the above integration formula up to degree n + 2. In this way, some numerical tests are given to show the numerical superiority of our idea with respect to the usual Open Newton–Cotes integration rules.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 175, Issue 1, 1 April 2006, Pages 618–627
Journal: Applied Mathematics and Computation - Volume 175, Issue 1, 1 April 2006, Pages 618–627
نویسندگان
Mehdi Dehghan, M. Masjed-Jamei, M.R. Eslahchi,