1             n        0.5 to 5    
				 
				
3             n        0.5 to 5   
                                
                                
4             n        0.5 to 5 
                                
                                
1            b/a        0.1 to 1
                                
                                 
3             b/a        0.1 to 1
                                 
                                 
4             b/a        0.1 to 1
                                 
1		q	0.1 to 0.99

3		q	0.1 to 0.99

1-3		x	 -2  2	

1-3		y	-2  2