Problem with parametric plot



Hello,

I have a problem where have two expressions which depend on a variable
and I would like to plot the two but my syntax is incorrect. So I have 

x:sum(ratcoef(cospsi,c,2*i)*integrate(cos(m*%pi*s)^(2*i),s),i,0,n),
y:sum(ratcoef(sinpsi,c,2*i+1)*integrate(cos(m*%pi*s)^(2*i+1),s),i,0,n),

which gives

(%i6) x;
(%o6) [(sin(4*%pi*s)+8*sin(2*%pi*s)+12*%pi*s)/(512*%pi)-(sin(2*%pi*s)+2*
%pi*s)/(8*%pi)+s]
(%i7) y;
(%o7) [(3*sin(5*%pi*s)+25*sin(3*%pi*s)+150*sin(%pi*s))/(12288*%
pi)-(193*(sin(3*%pi*s)+9*sin(%pi*s)))/(12288*%pi)+sin(%pi*s)/%pi]

I have tried 

plot2d([parametric,x, y,[s,0,1]]) 

but I get an error saying

Unknown plot option specified:  s

Suggestions?

Zoho