Implicit

   Implicit means something that's assumed unless stated otherwise; it is the
   opposite of [1]explicit. For example many [2]floating point formats assume
   an implicit (not physically stored) bit with value 1 prepended to the
   explicitly stored mantissa values. Though not the same, the term implicit
   is similar to [3]default; for example an implicit/default background
   [4]color of some image format may be defined as [5]white, meaning that
   unless background color is stated, we suppose the background to be white
   (though a default value may still be explicitly stored; default just means
   an initial, unchanged value). Implicit values may be important e.g. for
   saving space -- imagine we have some dataset in which 90% of values are
   [6]zero; then it is convenient to state zero to be the implicit value and
   not store such values, by which we'll save 90% of space.

Links:
1. explicit.md
2. float.md
3. default.md
4. color.md
5. white.md
6. zero.md