noun, Aeronautics (chiefly British) .
noun 1. the race, flume, or channel leading away from a waterwheel or the like. 2. Mining. the channel for conducting tailings or refuse away in water. noun 1. a channel that carries water away from a water wheel, turbine, etc Compare headrace 2. (mining) the channel for removing tailings in water
- Tail recursion
programming When the last thing a function (or procedure) does is to call itself. Such a function is called tail recursive. A function may make several recursive calls but a call is only tail-recursive if the caller returns immediately after it. E.g. f n = if n < 2 then 1 else f (f (n-2) […]
- Tail recursion modulo cons
programming, compiler A generalisation of tail recursion introduced by D.H.D. Warren. It applies when the last thing a function does is to apply a constructor functions (e.g. cons) to an application of a non-primitive function. This is transformed into a tail call to the function which is also passed a pointer to where its result […]
- Tail recursion optimisation
programming (TRO) Discarding the calling environment (call stack frame) when the last thing a function or procedure does is to call itself. This is important when a procedure calls itself recursively many times since, without tail recursion optimisation, the environments of earlier invocations would fill up the memory only to be discarded when (if) the […]