Python

Python

1. conditions

   • ==, !=, >=, <=, <, > are normal mathematical conditions used in python
     • if statements use these conditions
       • if statements consist of an "if" keyword followed by a conditional and code to be executed if the conditional evaluates to true
         • nested if statements consist of if statements inside other if statements
       • elif statements come after if statements and are like if statements except they only run if the other evaluates to false
       • else statements run if all other statements evaluate to false
   • "and" and "or" are logical operators that work the same way they do in math

2. functions

   • the "def" keyword is used to define a function
   • a function contains a block of code and only runs when called.
     • functions are called by writing their name and parentheses
   • argument can be passed through functionss

3. String concatenation

   • strings are a datatype consisting of characters
     • they can be combined using the "+" operator

4. numbers

   • int
     • short for integer
   • float
     • numbers with decimals
   • complex
     • complex numbers with "j" to represent the square root of negative one
   • thon has built in functions to convert between these types of numbers