doloop.mws

> restart:
 

> N:=3;
 

3 (1)
 

> for i from 1 to N do
diff(y[i](t),t)=(y[i+1](t)-y[i-1](t));
od;
 

 

 

diff(y[1](t), t) = `+`(y[2](t), `-`(y[0](t)))
diff(y[2](t), t) = `+`(y[3](t), `-`(y[1](t)))
diff(y[3](t), t) = `+`(y[4](t), `-`(y[2](t))) (2)
 

> `?`
 

`?` (3)
 

>