Task 10 and 11 are done

2025.05.09/11Ex/solve.c

@@ -0,0 +1,46 @@
+#include "solve.h"
+#include "integral.h"
+
+#include <math.h>
+#include <float.h>
+
+#define MAX_ITER 30
+
+double t11_solve (
+		double (*f) (double), 
+		double a, double eps, 
+		double *res
+) {
+	int it;
+
+	int h = 1;
+	double b = a;
+	double integ = 0;
+
+	for (it = 1; it <= MAX_ITER; ++it)
+	{
+		int n;
+		double ipart = 0;
+		b += h;
+		
+		n = simpson(f, a, b, eps, &ipart);
+		if (n < 0)
+			return -2;
+
+		integ += ipart;
+		
+		if (fabs(ipart) < eps)
+			break;
+
+		a = b;
+		h <<= 1;
+	}
+
+	if (it > MAX_ITER) 
+		return -1;
+	
+	*res = integ;
+
+	return b;
+}
+