For example, there are some calculator apps for the Iphone that let you write the numbers with your fingers and then it will figure out your handwriting and then turn it into a proper number with a font. How in the world is this even done? Are there prebuilt schematics for each and every letter and then you somehow iterate through each pixel and add stuff up?? I would assume there are prebuilt schematics, and then the program goes through each and every pixel and compares it through everything else and then pops out a result but that seems extremely difficult to figure out! ??? ???
