The specified value is a value as close to the true value, or as close to reality as much.There is a mathematical symbol "."The approximated: integer rounding Rounding of decimals.
The estimated value is stated to be close to the true value or close to reality as possible with mathematical symbols is "" a number of estimates and rounding of the decimal rounding.
The estimated value is specified value is close to the true value or close to the fact most a mathematical symbols. "" estimate were rounding of rounding decimal integer.