To loosen or separate the parts of.
to find out the perpetrator, the motive etc (of crime)
To algebraically manipulate an equation or inequality into a form that isolates a chosen variable on one side, so that the other side consists of an expression that may be used to generate solutions.
To find an answer or solution to a problem or question; to work out.
To find the values of variables that satisfy a system of equations and/or inequalities.
To undo a folding.
To release from a fold or pen.
To turn out; to happen; to develop.
To open (anything covered or closed); to lay open to view or contemplation; to bring out in all the details, or by successive development.
To reveal.
In functional programming, a kind of higher-order function that is the opposite of a fold.