Hi all, looking for a math wiz who can show me if it's possible to scale a number up and down using sin or cos.

The idea is to have a 1 line calculation for increasing and decreasing a whole number back and forth, like this:
1 2 3 4 5 6 7 8 9 10 9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 10 etc.

I can do this with flags, here is the code:
Code:

---

var numCtr = 1;
function testIncrement()
{
	var flagCtr = 1; 	
	while(1)  
	{    
		numCtr += flagCtr;      
		if(numCtr == 10 && flagCtr == 1)      
		{        
			flagCtr = -1;      
		}
		if(numCtr == 1 && flagCtr == -1)
		{
			flagCtr = 1;
		}		            
		wait(-1);
	}
}on_t testIncrement;

---

Anyone have a calculation that does this in less code using sin or cos?

Thanks

-raiden