* {{Parameter|doublePrecisionVariableOrLiteral#}} is converted to eight ASCII characters. To see this in action, try {{InlineCode}}PRINT MKD$(12345678){{InlineCodeEnd}}.
* [[DOUBLE]] values can range up to 15 decimal point digits. Decimal point accuracy depends on whole value places taken.
* The string value can be converted back to a DOUBLE numerical value using [[CVD]].
* [[DOUBLE]] numerical variable values [[PUT]] into a [[BINARY]] file are automatically placed as an MKD$ [[ASCII]] string value.