AA

sin0.cpp

@@ -0,0 +1,14 @@
+// g++ sin0.cpp -o sin0.o
+#include <iostream>
+#include <cmath>
+using namespace std;
+int main (){
+double PI=3.14159265358979323846;
+double t, result=0;
+  for ( t=0 ; t<=360 ; t = t + 15 )
+  {
+    result += sin(t);
+      cout <<t<<"\t"<< result<<endl;
+  }
+  return 0;
+}

sin1.cpp

@@ -0,0 +1,15 @@
+// g++ sin1.cpp -o sin1.o
+#include <iostream>
+#include <cmath>
+using namespace std;
+int main (){
+double PI=3.14159265358979323846;
+double d,t, sine_of_t=0; //d degrees , t theta
+  for ( d=0 ; d<=360 ; d = d + 15 )
+  {
+    t =( d * PI / 180.0);
+    sine_of_t = sin(t);
+      cout <<t<<" "<<d<<"\t"<< sine_of_t<<endl;
+  }
+  return 0;
+}

sin3.cpp

@@ -0,0 +1,25 @@
+// g++ sin1.cpp -o sin1.o
+#include <iostream>
+#include <cmath>
+using namespace std;
+
+
+double round4(double  var)
+{
+    double  value = (int)(var * 10000 + 0.0005);
+    return (double)value / 10000;
+}
+
+
+int main (){
+double PI=3.14159265358979323846;
+double d,t, sine_of_t=0; //d degrees , t theta
+  for ( d=0 ; d<=360 ; d = d + 15 )
+  {
+    t =( d * PI / 180.0);
+    sine_of_t = sin(t);
+    sine_of_t = round4(sine_of_t);
+      cout <<t<<" "<<d<<"\t"<< sine_of_t<<endl;
+  }
+  return 0;
+}