I then append a new collection onto factors - generated by the map function on the factors list - applying the code to generate the symmetrical (the matching factor above the square root) list.

The ortho-mode transducer adopts the design idea of square waveguide stepped impedance matching and waveguide slot coupling.

Inside, the cubic volume in lined in birch plywood and features matching furniture - which cantilevers off the walls to make the most of the limited floor area of just 13 square metres.