sect1.1.7.mw

> restart:
 

> N:=3;
 

3 (1)
 

> for i from 1 to N do  #Use the shift enter key to add each new line.
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)
 

>