% compute yCSC = A*x with A in CSC format
function yCSC = SpMV_CSC(valACSC,rowindexACSC,colbeginACSC,n,x);
%
yCSC = zeros(n,1);  % allocate space for answer
for j = 1:length(colbeginACSC)-1,
    for i=colbeginACSC(j):colbeginACSC(j+1)-1,
        yCSC(rowindexACSC(i)) = yCSC(rowindexACSC(i)) + valACSC(i)*x(j);
    end
end