Herobrine does not and has never existed in the game naturally. In order to have Herobrine appear, you will have to download a mod. If you don't know how to find and install mods for Minecraft, wikiHow can help. 1  The most common Herobrine mod is the burner Mod, available on MinecraftMods and in the Minecraft Forum.
For loudspeakers, see mid-range speaker. In statistics, the mid-range or mid-extreme of a set of statistical data values is the arithmetic mean of the maximum and minimum values in a data set, defined as: The mid-range is the midpoint of the range; as such, it is a measure of central tendency.
range creates a list, so if you do range(1, 10000000) it creates a list in memory with 10000000elements. xrange is a sequence object that evaluates lazily. $ python -m timeit 'for i in range(1000000):' ' pass'. 10 loops, best of 3: 90.5 msec per loop. $ python -m timeit 'for i in xrange(1000000):' ' pass'.