}
}
-static double dichotomy(double func(double), double min, double max, double min_error)
+double a_test_1 = 0;
+double b_test_1 = 0;
+static double diff_lagrange_test_1(double x)
+{
+ return -(3 / (1 + 3 * x * x / 2) - 3 / (2 * (3 * (a_test_1 - x) * (a_test_1 - x) / 2 + 1)) +
+ 3 / (2 * (3 * (b_test_1 - a_test_1 + x) * (b_test_1 - a_test_1 + x) / 2 + 1)));
+}
+
+static double dichotomy(double min, double max, double min_error)
{
double overall_error = 2 * min_error;
- double min_func = func(min);
- double max_func = func(max);
+ double min_func = diff_lagrange_test_1(min);
+ double max_func = diff_lagrange_test_1(max);
if (min_func > 0 && max_func > 0)
return min - 1.0;
if (fabs(min - middle) < 1e-12 || fabs(max - middle) < 1e-12) {
break;
}
- double middle_func = func(middle);
+ double middle_func = diff_lagrange_test_1(middle);
SHOW_EXPR(middle);
SHOW_EXPR(middle_func);
return ((min + max) / 2.0);
}
-double a_test_1 = 0;
-double b_test_1 = 0;
-static double diff_lagrange_test_1(double x)
-{
- return -(3 / (1 + 3 * x * x / 2) - 3 / (2 * (3 * (a_test_1 - x) * (a_test_1 - x) / 2 + 1)) +
- 3 / (2 * (3 * (b_test_1 - a_test_1 + x) * (b_test_1 - a_test_1 + x) / 2 + 1)));
-}
-
static void test1(method_t method)
{
double a = 1.0;
} else if (method == LAGRANGE_RENO) {
a_test_1 = a;
b_test_1 = b;
- x = dichotomy(diff_lagrange_test_1, 0, a, 1e-13);
+ x = dichotomy(0, a, 1e-13);
if (x < 0)
x = 0;