Another word for constraints

If the system be subject to frictionless constraints, e.g.

if we imagine the system reduced by frictionless constraints to one degree of freedom, so that the co-ordinates 0, 0, 0,.

Some plans he couldn't use for lack of manpower, timing constraints, or other battle-related reasons, but some were brilliant.

But I do think we will see an end to any effective constraints relating to computers' ability to process data and transfer information.

Besides this most important contribution to the general fabric of dynamical science, we owe to Lagrange several minor theorems of great elegance, - among which may be mentioned his theorem that the kinetic energy imparted by given impulses to a material system under given constraints is a maximum.