restruct 1

2 semestr/Homework/zero_finder/main.c

@@ -0,0 +1,41 @@
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+double func(double x) 
+    { 
+        return exp(x*5.8) + sin(x+3.5); 
+    }
+
+int main(int argc, char *argv[])
+{
+    srand(time(0));
+
+    double start = -5.6, finish = -1.0, e = 1e-6, mid = (finish + start) / 2.0;
+
+    if (func(start) * func(finish) > 0)
+    {
+        printf("Couldn`t find\n");
+        exit(0);
+    }
+
+    while (fabs(func(mid)) >= e)
+    {
+        mid = (finish + start) / 2.0;
+        if (func(mid) > 0)
+        {
+            start = (func(start) > func(finish)) ? mid : start;
+            finish = (func(start) < func(finish)) ? mid : finish;
+        }
+        else
+        {
+            start = (func(start) < func(finish)) ? mid : start;
+            finish = (func(start) > func(finish)) ? mid : finish;
+        }
+    }
+
+    printf("Zero: %lF\n", start);
+
+    return 0;
+}