Source: cirosantilli/control-theory

= Control theory
{wiki}

This basically adds one more ingredient to <partial differential equations>: a <function> that we can select.

And then the question becomes: if this function has such and such limitation, can we make the solution of the <differential equation> have such and such property?

It's quite fun from a mathematics point of view!

Control theory also takes into consideration possible <discretization> of the domain, which allows using <numerical methods to solve partial differential equations>, as well as digital, rather than analogue control methods.