Real Component — A Brief Summary

Range of values: real numbers limited to about 15 digits of precision

Initial value: 0.0

Assignment operator: =

Arithmetic operators:

+ (addition)

- (subtraction)

* (multiplication)

/ (real division — quotient and the remainder)

Precedence of arithmetic operator evaluation:

Highest: parenthesized subexpressions

*, /

lowest: +, -

Note: Consecutive operators of the equal precedence are evaluated left to right.

Relational operators:

== (equal)

!= (not equal)

< (less than and not equal)

<= (less than or equal)

> (greater than and not equal)

>= (greater than or equal)

Input and output:

Assume that input is an object of type Character_IStream, that output is an object of type Character_OStream, and that r is an object of type Real.

· To input a value for r use input >> r.

· To output the value of r use output << r.

Conversion operators:

Assume that r is an object of type Real.

· To convert the value of r to a text string use To_Text (r).

· To convert the value of r to an integer use To_Integer (r).

Note: The result of To_Integer (r) is the "whole" part of r with the fractional part discarded.