If you already know 22/7 approximation, it's just a (0x10)^-1 correction in denominator. That is: 22/7 = 3 1/7 ==> 355/113 = 3 1/(7 + 1/16) This means just m

If you already know 22/7 approximation, it's just a (0x10)^-1 correction in denominator. That is: 22/7 = 3 1/7 ==> 355/113 = 3 1/(7 + 1/16) This means just memorizing 3 numbers. {3,7,16} and continued fraction format.