English: This figure shows the angle at which a shock will be formed in a 2D supersonic flowfield for various deflection angle. M1 is the upstream Mach number, M2 is the downstream Mach number.
{{Information| |Description = This figure shows the angle at which a [[oblique shock|shock]] will be formed in a 2D supersonic flowfield for various deflection angle. M<sub>1</sub> is the upstream Mach number, M<sub>2</sub> is the downstream Mach number.