DelphiBasics Extended Type The floating point type with the highest capacity and precision System unit

type Extended;

Description The Extended type is a floating point type used when the highest exponent and/or significant digits are required.   It supports approximately 19 digits of precision in a range from 3.37 x 10-4932 to 1.18 x 104932. Notes The Single type is the smallest and fastest, but with worst capacity and precision. The Double type has medium storage, speed, capacity and performance. A Extended set to its highest value is treated as Infinity. Related commands Currency A decimal type with 4 decimal points used for financial values Double A floating point type supporting about 15 digits of precision PExtended Pointer to a Extended floating point value Single The smallest capacity and precision floating point type  Download this web site as a Windows program.

Example code : Showing the precision and capacity of Extended values var   account1, account2, account3, account4 : Extended; begin   account1 := 0.1234567890123456789;  // 20 decimal places   account2 := 3.37E-4932;              // Lowest exponent value   account3 := 1.18E4932;              // Highest exponent value   account4 := 1.19E4932;              // Treated as infinite   ShowMessage('Account1 = '+FloatToStrF(account1, ffGeneral, 22, 20));   ShowMessage('Account2 = '+FloatToStr(account2));   ShowMessage('Account3 = '+FloatToStr(account3));   ShowMessage('Account4 = '+FloatToStr(account4)); end; Show full unit code   Account1 = 0.123456789012345679   Account2 = 3.37E-4932   Account3 = 1.18E4932   Account4 = INF

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