Normally, to place an inclined rail, you have to place it diagonally below another rail:
Breaking the higher rail will leave the inclined one still inclined, like so:
… but breaking the "supporting" block beside the incline breaks both the block and the inclined rail. I once saw a video on YouTube that had an unsupported "jump" rail, so I know it's possible somehow, but the question is how?
How do I make an unsupported inclined rail that looks like this?