Task 6 and 7 are done

2025.05.09/07Ex/init_f.h

@@ -0,0 +1,75 @@
+#ifndef INIT_F_H
+#define INIT_F_H
+
+#include <math.h>
+
+static inline double weight (double x)
+{
+	return 1. / sqrt(fabs(x));
+}
+
+// ------------------------------------
+
+static int cl = 0;
+
+static inline int get_call_count (void) 
+{
+	return cl;
+}
+
+static inline double f0 (double x)
+{
+	cl++;
+	(void)x;
+
+	return 1;
+}
+
+static inline double f1 (double x)
+{
+	cl++;
+	return x + 1;
+}
+
+static inline double f2 (double x)
+{
+	double x_2 = x * x;
+	cl++;
+	return x_2 + x + 1;
+}
+
+static inline double f3 (double x)
+{
+	double x_2 = x * x;
+	double x_3 = x_2 * x;
+	cl++;
+
+	return x_3 + x_2 + x + 1;
+}
+
+static inline double f4 (double x)
+{
+	double x_2 = x * x;
+	double x_3 = x_2 * x;
+	double x_4 = x_3 * x;
+	cl++;
+
+	return x_4 + x_3 + x_2 + x + 1;
+}
+
+static inline double f5 (double x)
+{
+	cl++;
+	return exp(-x);
+}
+
+static inline double f6 (double x)
+{
+	double x_2 = x * x;
+	cl++;
+	return 1 / (25 * x_2 + 1);
+}
+
+// ------------------------------------
+
+#endif