Delphi distinguishes in the way it uses text
(string, char) and numbers (integer, real, etc.).
Variables are declared as integers if
they use whole numbers (for example 23 or 765) and real if
they have decimal fractions (for example 2.63 or 0.46544).
Apart from the data type Real other related types include (ranges included):
Mathematical operators can be used in Delphi:
Mathematical functions and procedures also exist that makes conversion between text and numbers and the manipulation of numbers easier:
Delphi resources index
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© JAK Olivier (2008)