{"id":12,"date":"2022-08-23T07:29:15","date_gmt":"2022-08-23T07:29:15","guid":{"rendered":"https:\/\/python.freelinuxtutorials.com\/?p=12"},"modified":"2022-08-23T10:06:12","modified_gmt":"2022-08-23T10:06:12","slug":"python-data-type-integer","status":"publish","type":"post","link":"https:\/\/python.freelinuxtutorials.com\/index.php\/2022\/08\/23\/python-data-type-integer\/","title":{"rendered":"Python>>Data Type:Integer"},"content":{"rendered":"

Integers or Int are whole numbers without the decimal point or fractional part. It can be positive or negative or zero.It can be binary, octal or hexadecimal values.<\/span><\/p>\n

\n

Let’s do mathematical calculation:<\/p>\n

Arithmetic operators:<\/p>\n

 <\/p>\n

addition = +<\/div>\n
subtraction = –<\/div>\n
multiplication = *<\/div>\n
division = \/<\/div>\n
<\/div>\n
modulus = %
\nexponent = **
\nfloor division = \/\/<\/div>\n
<\/div>\n
-modulus will output the remainder of the division<\/div>\n
-exponent will output the exponent<\/div>\n
-floor division will\u00a0\u00a0output\u00a0quotient in which the digits after the decimal point are removed.<\/div>\n
<\/div>\n
Examples:<\/div>\n

 <\/p>\n

\n
>>> 4+2
\n6
\n>>> 4-2
\n2
\n>>> 4*2
\n8
\n>>> 4\/2
\n2.0
\n>>> 9\/4
\n2.25
\n>>> 9%4
\n1
\n>>> 9\/\/4
\n2<\/div>\n<\/blockquote>\n
<\/div>\n
So is like 9 divided by 4 = 2 remainder 1.So the quotient without the remainder is the floor division.<\/div>\n
<\/div>\n
So from what I learned, if you use division , the quotient of two whole numbers (int) becomes float because it has decimal point.<\/div>\n
<\/div>\n
Example:<\/div>\n
\n
\n
>>> 20\/2<\/div>\n
10.0<\/div>\n
>>> div = 20\/2<\/div>\n
>>> print (div)<\/div>\n
10.0<\/div>\n
>>> print (type(div))<\/div>\n
<class ‘float’><\/div>\n<\/blockquote>\n<\/div>\n

 <\/p>\n

\n
>>> x = 8+8<\/div>\n<\/blockquote>\n
\n
\n
>>> print (x)<\/div>\n
16<\/div>\n
>>> print (type(x))
\n<class ‘int’><\/div>\n<\/blockquote>\n<\/div>\n
<\/div>\n
Some key things to take note:<\/div>\n
<\/div>\n
1. Leading zeroes are not allowed to represent integeer or whole numbers<\/div>\n
e.g.<\/div>\n
\n
\n
>>> 012345<\/div>\n
\u00a0 File “<stdin>”, line 1<\/div>\n
\u00a0 \u00a0 012345<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0^<\/div>\n<\/blockquote>\n
SyntaxError: leading zeros in decimal integer literals are not permitted; use an 0o prefix for octal integers<\/div>\n<\/div>\n
<\/div>\n
2. It does not allow comma to use as delimeter, use the symbol underscore (_)<\/div>\n
e.g.<\/div>\n
\n
\n
>>> 1,2,3,4<\/div>\n
(1, 2, 3, 4)<\/div>\n
>>> 1_2_3_4<\/div>\n
1234<\/div>\n<\/blockquote>\n<\/div>\n
3. Do not use decimal point, else it will become a float data type<\/div>\n
e.g.<\/div>\n
\n
\n
>>> x = 100<\/div>\n
>>> print (type(x))<\/div>\n
<class ‘int’><\/div>\n
>>> x = 100.0<\/div>\n
>>> print (type(x))<\/div>\n
<class ‘float’><\/div>\n<\/blockquote>\n<\/div>\n
<\/div>\n
4. As mentioned above, integers\u00a0 can be binary, octal or hexadecimal values, but need to use these characters in front of it<\/div>\n
binary = 0b<\/u><\/div>\n
hexadecimal = 0x <\/u>(or 0X)<\/div>\n
octal = 0o <\/u>(or 0O)<\/div>\n
e.g.<\/div>\n
decimal= 100<\/div>\n
if convert becomes:<\/div>\n
binary =\u00a01100100<\/div>\n
hexadecimal =\u00a064
\noctal =\u00a0144<\/div>\n
<\/div>\n
\n
\n
>>> 100<\/div>\n
100<\/div>\n
>>> 0b1100100<\/div>\n
100<\/div>\n
>>> 0x64<\/div>\n
100<\/div>\n
>>> 0o144<\/div>\n
100<\/div>\n<\/blockquote>\n<\/div>\n
<\/div>\n
<\/div>\n
5. there’s a function called int() to convert strings to int<\/div>\n
<\/div>\n
\n
\n
>>> x = 12.34<\/div>\n
>>> int(x)<\/div>\n
12<\/div>\n<\/blockquote>\n
<\/div>\n<\/div>\n
\n
\n
>>> x = 777.888<\/div>\n
>>> int (x)<\/div>\n
777<\/div>\n<\/blockquote>\n<\/div>\n
\n
<\/div>\n<\/blockquote>\n
\n
\n
>>> int(‘100’)<\/div>\n
100<\/div>\n<\/blockquote>\n<\/div>\n
\n
<\/div>\n<\/blockquote>\n
<\/div>\n
<\/div>\n
If you directly put it inside the int function, you will get something like this error:<\/div>\n
<\/div>\n
\n
\n
>>> int (‘777.888’)<\/div>\n
Traceback (most recent call last):<\/div>\n
\u00a0 File “<stdin>”, line 1, in <module><\/div>\n
ValueError: invalid literal for int() with base 10: ‘777.888’<\/div>\n<\/blockquote>\n<\/div>\n
<\/div>\n
Since it is a float, need to do something like this:<\/div>\n
<\/div>\n
\n
\n
>>> int(float(‘777.888’))<\/div>\n
777<\/div>\n<\/blockquote>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Integers or Int are whole numbers without the decimal point or fractional part. It can be positive or negative or zero.It can be binary, octal or hexadecimal values. Let’s do mathematical calculation: Arithmetic operators:   addition = + subtraction = – multiplication = * division = \/ modulus = % exponent = ** floor division…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-12","post","type-post","status-publish","format-standard","hentry","category-data-types"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/posts\/12","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/comments?post=12"}],"version-history":[{"count":2,"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/posts\/12\/revisions"}],"predecessor-version":[{"id":14,"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/posts\/12\/revisions\/14"}],"wp:attachment":[{"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/media?parent=12"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/categories?post=12"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/python.freelinuxtutorials.com\/index.php\/wp-json\/wp\/v2\/tags?post=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}