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: http://xmm.vilspa.esa.es/sas/6.5.0/doc/ssclib/node16.html
Дата изменения: Tue Aug 16 01:58:13 2005 Дата индексирования: Sat Dec 22 08:06:19 2007 Кодировка: Поисковые слова: iya2009 |
Given two vectors and containing samples of a function , this subroutine returns the `trapezoidal-rule' estimate of the integral of . In other words, is replaced by the set of piecewise-continuous line segments defined by and . Note that is assumed to be monotonically increasing - if it isn't, you'll get strange results.
interface trapezoidSum function trapezoidSumSingle(x, y) result(summ) real(single), intent(in) :: x(:), y(size(x)) real(single) :: summ end function trapezoidSumSingle function trapezoidSumDouble(x, y) result(summ) real(double), intent(in) :: x(:), y(size(x)) real(double) :: summ end function trapezoidSumDouble end interface