#1
double schalt1(14,2)
-1.5   -4.15 
-0.51  -4.15 
-0.5    0    
 0.49   0    
 0.5    4.15 
 1.49   4.15 
 1.5    2.52 
 2.49   2.52 
 2.5    1.69 
 3.49   1.69 
 3.5    1.24 
 4.49   1.24 
 4.5    1    
 5.5    1