Digital root number is the number mod 11 (Ɛ), for example, 1972 is 1 + 9 + 7 + 2 = 19 = 17 which is 1 + 7 = 8, while in decimal the root of the same number (3110) is 5; and in base 16 a digital root of a number is the number mod 15 (0xF), for example, 0x7DF is 7 + 13 + 15 = 35 = 0x23 which is 2 + 3 = 5, while in decimal the root of the same number (2015) is 8. Digital roots form an important mechanic in the visual novel adventure
Square root of 2 produce another whole-number square, even when the equation is not in its simplest form. "Proof": Assume formula_40 is rational. Therefore, But the lemma proves that the sum of two identical whole-number squares cannot produce another whole-number square. Therefore, the assumption that formula_40 is rational is contradicted. formula_40 is irrational. Q. E. D. One-half of , also the reciprocal of , approximately , is a common quantity in geometry and trigonometry because the unit vector that makes a 45° angle with the axes in a plane has the coordinates This number satisfies One interesting property of is as follows: since This