Beispiel #1
0
    def resolve(self):
        '''Вычисление интеграла методом правых прямоугольников.'''
        super().resolve()
        a, b = self.range
        n = 0
        s = 0
        s1 = self.error * 10
        split_count = 10  # Кол-во разбиений
        while abs(s - s1) >= self.error:
            n += 1

            s1 = copy.deepcopy(s)
            s = 0
            h = (b - a) / split_count
            x_boof = a
            for i in range(1, split_count + 1):
                x = x_boof + i * h
                s += self.f(x)

            s *= h
            split_count *= 2
            if self.debug:
                print('{0}: {1}'.format(n, s))

        return resolving.from_dict({
            'steps': n,
            'value': s,
            'method_name': self.method_name
        })
Beispiel #2
0
    def resolve(self):
        '''Вычисление интеграла методом парабол.'''
        super().resolve()
        a, b = self.range
        n = 0
        s = 0
        s1 = self.error * 10
        split_count = 10  # Кол-во разбиений
        while abs(s - s1) >= self.error:
            n += 1

            s1 = copy.deepcopy(s)
            s = 0
            h = (b - a) / split_count
            x_boof = copy.deepcopy(a)
            s = self.f(a) + self.f(b)

            for i in range(1, split_count):
                x = x_boof + i * h
                if (i % 2 == 0):
                    s += 2 * self.f(x)
                else:
                    s += 4 * self.f(x)

            s *= h / 3
            split_count *= 2
            if self.debug:
                print('{0}: {1}'.format(n, s))

        return resolving.from_dict({
            'steps': n,
            'value': s,
            'method_name': self.method_name
        })