👉 A semidouble is a number that can be represented as a sum of two integers, where one integer is an even integer and the other is an odd integer. This means that it cannot be expressed as a simple fraction or decimal representation, but instead as a sum of these two integers. For example, 3 (which is an even integer) + 1 (an odd integer) = 4, which can also be written as 2 + 2. Semidoubles are
