Unit 4 - Floating Point data types - float and double

Posted on Friday, May 7, 2010 by B[H] | 0 comments
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This type can store floating point in computer memory.

Syntax : double name_identifier
Example: double pendapatan_bersih,cukai_pendapatan;
double nilai;

Memory storage that use for variable pendapatan_bersih be able to store floating point data. But int and char data types only can be stored according to computer types. The three floating points data in C++ such as;

1. float
2. double
3. long double


The comparison of the three types are range value and digits.

Float : 1.175494e-38 to 3.402823e+38 (6 place decimal )
Double : 2.225074e308 to 1.797693e+308 (15 place decimal)
Long double : 3.362103e-4932 to 1.189731e+4932 (19 place dec.)

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