pnorm is used to create a conic model of p-norm. For standard norms 1,2 and inf the standard norm should be used.
y = pnorm(x,q/r); y = pnorm(x,p,'power')
Plot a TV-screen!
x = sdpvar(2,1); plot(pnorm(x,7/2) <= 1);
The operator is implemented using a graph representation based on conic models, and can thus only be used in scenarios where YALMIP can propagate convexity in a conic form. By default it uses a second-order cone model (which can grow very large if q and r are large), but by appending a third argument this can be switched to a power cone representation which will be more compact.