Sin.java

@@ -1,91 +0,0 @@
-package sin;
-
-public class Sin {
-
-	public static double number;
-	public static double PI = 3.14159265358979323846;
-	
-	
-	public Sin() {
-		
-	}
-	
-	public static double sin(double num) {
-		
-		double tmp = Math.toRadians(num);
-		number=Math.sin(tmp);
-		
-		return number;
-		
-	}
-	
-	public static double cos(double num) {
-		
-		double tmp = Math.toRadians(num);
-		
-		return Math.cos(tmp);
-		
-	}
-	
-	public static double mysin(double x)
-	{
-		while(x>2*PI) x -= 2*PI;
-		while(x<0) x += 2*PI;
-		
-		double index, result=0;
-		int i=1;
-		do{
-			index = mypow(x,i) / factorial(i);
-			result += mypow(-1,i/2) * index;
-			i += 2;
-		}
-		while(index>1e-6);
-		return result;
-	}
-	
-	public static double factorial(double i) {
-		
-		if(i==0) 
-			return 1;
-		else 
-			return i*factorial(i-1);
-	}
-	
-	public static double mypow(double x,int i) {
-			
-		if(i>0) 
-			return x*mypow(x, i-1);
-		else if(i<0) 
-			return 1/x*mypow(x, i+1);
-		else 
-			return 1;
-		
-		
-	}
-	
-	public static double mycos(double x) {
-		while(x>2*PI) x -= 2*PI;
-		while(x<0) x += 2*PI;
-		
-		double index, result=0;
-		int i=0;
-		
-		do{
-			index = mypow(x,i) / factorial(i);
-			result += mypow(-1,i/2) * index;
-			i += 2;
-		}
-		while(index>1e-6);
-		
-		return result;
-	}
-	public static double toRadians(double angdeg) {
-        return angdeg / 180.0 * PI;
-    }
-	public static void main(String[] args) {
-		
-		System.out.println(mysin(toRadians(30)));
-		System.out.println(mycos(30));
-	}
-
-}

mypow.java

@@ -0,0 +1,7 @@
+public class mypow{
+	double e,x;
+public double mypow(double e,double x) {
+		double ans=Math.pow(e, x);
+		return ans;
+	}
+}