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| author | Amit Sethi | 2010-10-27 16:57:45 +0530 |
|---|---|---|
| committer | Amit Sethi | 2010-10-27 16:57:45 +0530 |
| commit | ff6510a1cc76c767a65f3b5bda672e3503426b05 (patch) | |
| tree | 79ecd2c2b23d5e5cb24ae5434fcbff449d1ee6e3 /basic-data-type | |
| parent | 96649a40330ba5a50ad36b4d1d1263c08a601986 (diff) | |
| download | st-scripts-ff6510a1cc76c767a65f3b5bda672e3503426b05.tar.gz st-scripts-ff6510a1cc76c767a65f3b5bda672e3503426b05.tar.bz2 st-scripts-ff6510a1cc76c767a65f3b5bda672e3503426b05.zip | |
Made changes to basic data type script based on review
Diffstat (limited to 'basic-data-type')
| -rw-r--r-- | basic-data-type/script.rst | 64 |
1 files changed, 43 insertions, 21 deletions
diff --git a/basic-data-type/script.rst b/basic-data-type/script.rst index 80034d6..f6b4b3e 100644 --- a/basic-data-type/script.rst +++ b/basic-data-type/script.rst @@ -28,7 +28,14 @@ in Python. In this tutorial, we shall look at * Datatypes in Python - * Operators in Python + * Numbers + * Boolean + * Sequence +* Operators in Python + * Arithmetic Operators + * Boolean Operators + +* Manipulating Sequence datatypes .. #[Puneeth: Use double colon only for code blocks.] .. #[Puneeth: include more details in the outline.] @@ -44,9 +51,9 @@ There are three built-in data types in python to represent numbers. These are: - * int for integers - * float for floating point numbers and - * complex for complex numbers + * int + * float + * complex .. #[Puneeth: Changed to int, float and complex.] @@ -54,13 +61,13 @@ These are: .. then you were calling them integers, floats and complex. Clean up .. required.] -Lets first talk about integers. :: +Lets first talk about int. :: a = 13 a -Now, we have our first integer variable a. +Now, we have our first int variable a. If we now see :: @@ -78,7 +85,7 @@ it different ways. You can explore these by doing, .. Something like this would be better. .. int data-type can hold integers of any size. for example - ] -Lets see the limits of this int. +*int* datatype can hold integers of any size lets see this by example. b = 99999999999999999999 b @@ -93,7 +100,7 @@ put a capital L at the end. Now if you check the type of this variable b, The reason for this is that python recognizes large integer numbers by the -data type long. However long type and integer type share there functions +data type long. However long type and int type share there functions and properties. .. #[Puneeth: again, the clean-up that I talked of above. Decide if you are @@ -159,16 +166,16 @@ The results are self explanatory. .. #[Puneeth: Why does booleans bring us to precedence? I don't see the .. connection. Am I missing something?] -The usage of boolean brings us to an interesting question of precedence. + What if you want to apply one operator before another. Well you can use parenthesis for precedence. Lets write some piece of code to check this out.:: - In[]: a=False - In[]: b=True - In[]: c=True + a=False + b=True + c=True .. #[Puneeth: Consistency. In[]: is not present at other places.] @@ -195,7 +202,22 @@ these data types. .. #[Puneeth: A mention of other operators would be good? Starting .. with % and ** is a bit weird.] -Python uses % for modulo operation :: +Python uses '+' for addition :: + + 23 + 74 + +'-' for subtraction :: + 23 - 56 + +'*' for multiplication :: + + 45*76 + +'/' for division :: + + 384/16 + + '%' for modulo operation :: 87 % 6 @@ -224,8 +246,8 @@ is same as :: a=a/23 Lets now discuss sequence data types in Python. Sequence data types -are those in which elements are kept in a sequential order. All the -elements accessed using index. +are those in which elements are kept in a sequential order and all the +elements accessed using index numbers. .. #[Puneeth: fix the last sentence - it sounds incomplete] @@ -257,7 +279,7 @@ We can have a list something like :: .. #[Puneeth: some continuity, when jumping to strings?] -Now we will have a look at strings +Lets look at another sequence data type, strings type :: @@ -271,12 +293,12 @@ greeting_string is now a string variable with the value "hello" Python strings can actually be defined in three different ways :: k='Single quote' - l="Double quote contain's single quote" - m='''"Contain's both"''' + l="Let's see how to include a single quote" + m='''"Let's see how to include both"''' .. #[Puneeth: Contain's? That's not a word!] -Thus, single quotes are used as delimiters usually. +As you can see, single quotes are used as delimiters usually. .. #[Puneeth: Thus?] @@ -348,8 +370,8 @@ Get a sorted list and reversed list using sorted and reversed function :: sorted(num_list) reversed(greeting_string) -As a consequence of the order one we access a group of elements together. -This is called slicing and striding. +As a consequence of there order we can access a group of elements of sequence, +together. This is called slicing and striding. .. #[Puneeth: Fix the sentence above. ] |