Alternative chord method

main.cpp

@@ -68,6 +68,26 @@ double chordMethod(double left, double right, double error, double (*f)(double x
   return right;
 }
 
+double chordMethod2(double left, double right, double error, double (*f)(double))
+{
+  double c;
+
+  while(std::fabs( f(right) - f(left) ) > error)
+  {
+    c = ( f(right) * left - f(left) * right) / ( f(right) - f(left) );
+
+    if( f(left) * f(c) > 0) 
+    {
+      left = c;
+    }
+    else {
+      right = c;
+    }
+  }
+
+  return c;
+}
+
 int main()
 {
   // Включим языковые настройки для корректного отображения русских символов