Ok, now that you can make pretty documents using Markdown, let’s get back to some Code type cells!
So far, we just learned printing things. Now we will go into variables!
Let’s learn three types of variables – integer, float (decimals) and strings (word/phrase/ sentence)
1. Write a = 9
print(a)
Run this. What type of variable is a?
Notice that, we do not have to worry about ‘declaring’ a variable or type specifically. Python understand right away 😀
2. Write b = 9.0
print (b)
Run it. What type of variable is b?
3. You can also make a float variable according to the following:
Write c = float(9)
print(c)
4. You can make strings using either double quotation or single quotation, like the way we learnt while learning about the print function in Day 1. Ensure you use double quotation when your string has an apostrophe. ( Else you have to use an \’ )
Write string1 = ‘kamehameha’
Print the string.
5. Write string 2 = ” It’s the final countdown!”
Print the string.
6. Define a new string which , when printed will give the same output as 5 above – but use SINGLE quotation.
string3 = ‘It\’s the final countdown!’
‘\’ is a way to use special characters which otherwise have different meanings and purposes in Python. Here is a list of special characters. https://www.stat.berkeley.edu/~spector/extension/python/notes/node14.html
7. Exercise:
Make a string called someFancyLine , which when printed will give the following:
And then he yelled\sang, “It’s the finaaal countdooown!
Ta na naaa na
Ta na nanana
Ta na naaa na
Ta na nana nanana!”