var a,b,c: clVector; begin a.CopyFromArray(TSingleArray.Create(1,2,3,4)); // a = [1,2,3, 4] //magnitude b.CopyFromArray(TSingleArray.Create(1,0,1,-1)); // b = [1,0,1,-1] /phase c.PolarToCart(a,b); // result stored in c = projections to Re and Im axis end;