Int: Difference between revisions
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| Line 15: | Line 15: | ||
<?php | <?php | ||
$a = 1234; // decimal number | $a = 1234; // decimal number | ||
$a = - | $a = -1234; // a negative number | ||
?> | ?> | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| Line 22: | Line 22: | ||
<syntaxhighlight lang="python3"> | <syntaxhighlight lang="python3"> | ||
# decimal number: | # decimal number: | ||
a = 1234 | a = 1234 | ||
# a negative number: | # a negative number: | ||
a = - | a = -1234 | ||
</syntaxhighlight> | </syntaxhighlight> | ||
In Javascript: | In Javascript: | ||
<syntaxhighlight lang="javascript"> | |||
// decimal number: | |||
var a = 1234; | |||
// a negative number: | |||
var a = -1234; | |||
</syntaxhighlight> | |||
== Do you understand this? == | == Do you understand this? == | ||
Revision as of 06:49, 6 August 2017
Programming basics[1]
Int (signed integers): They are often called just integers or ints, are positive or negative whole numbers with no decimal point.[2]
Difference between an int and a float[edit]
Integers and floats are two different kinds of numerical data. An integer (more commonly called an int) is a number without a decimal point. A float is a floating-point number, which means it is a number that has a decimal place. Floats are used when more precision is needed.[3]
Example[edit]
In PHP: You will remember PHP isn't a strictly typed language (although it can be set to be).
<?php
$a = 1234; // decimal number
$a = -1234; // a negative number
?>
In Python:
# decimal number:
a = 1234
# a negative number:
a = -1234
In Javascript:
// decimal number:
var a = 1234;
// a negative number:
var a = -1234;
Do you understand this?[edit]
Standards[edit]
- Define the terms: variable, constant, operator, object.