| 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.
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| 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.
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| Related commands |
| Currency |
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A floating point type with 4 decimals used for financial values |
| Double |
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A floating point type supporting about 15 digits of precision |
| PExtended |
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Pointer to a Extended floating point value |
| Single |
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The smallest capacity and precision floating point type |
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| 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;
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| Show full unit code |
Account1 = 0.123456789012345679
Account2 = 3.37E-4932
Account3 = 1.18E4932
Account4 = INF
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