The original fibre-tipped pen. Perfect for graphics and illustrations. Non-permanent water-based ink. For office, college or home. Approx line width up to 2.0mm. Made from 83% recycled material. (black, red, blue and green only - excludes the ink)
Recursion is a way of programming or coding a problem, in which a function calls itself one or more times in its body. Usually, it is returning the return value of this function call. If a function definition fulfils the condition of recursion, we call this function a recursive function.
Tail recursion is recursion where the function calls itself at the end (tail) of the function. At some point, the function decides not to call itself again and the result is returned. Thus this behavior is analogous to a loop, and can be optimized into such.