Preprint Open Access
Inder J. Taneja
Author studied many ways of writing selfie numbers (reference ). By selfie numbers, we understand those numbers that can be expressed in terms of same digits as of number, either in digit's order or reverse order of digits. These numbers are obtained by use of basic operations along with factorial, square-root, etc. There are numbers very much near to selfie-number, but are not selfie numbers. These types of numbers, referred as semi-selfie numbers, where the numbers are written in terms of expressions with positive and negative signs having same digits on both sides of the expressions, except the power values. This paper brings semi-selfie numbers in different situations. In some situations, they are expressed with positive sign, and positive and negative signs. The work is limited to 11-digits numbers. This is revised and enlarged version of author's previous two works appearing in reference lists as  and .