operators and data types

• A string is one or more characters
• lesser than symbol ?


  <
• Greater than symbol?

  >
• greater than or equal to and lesser than or equal to rule to remember which symbol comes first?

  order in which it is spoken, equal last
• Equivalent to symbol?

  ==
• Lesser than or equal to symbol?

  <=
• greater than or equal to symbol?

  >=
• Not equivalent to in python?

  !=
• How to group in python?


  ()
• AND means both conditions are met
• OR means atleast one of the conditions is met
• The floor division operator (//) is used to divide two numbers and round the result down to the nearest whole number.
• The exponentiation operator (**) is used to raise a number to a power.
• The is operator is used to check if two variables refer to the same object.
• The modulo operator (%) is used to find the remainder of a division operation.
• The dict data types stores pairs of values together such as "brand": "Ford"
• Iteration is repeating lines of code
• THe difference between a while loop and a repeat until loop is that while loops condition is tested before the code is run and repeat untils code is tested after
• Repeat untill is a post-test as the condition is tested after the code is run
• While if is pre- test as the condition is tested before the code is run
• 'is' checks the exact value and form of a value such that

  x=[1,2,3]

  z=x

  y=[1,2,3]

  x is y = True

  x is z = False
• 'in' checks whether an item appears within a sequence or not
• 'not in' checks whether an item doesnt appear within a sequence or not
• To check what data type something is use?

  isinstance()
• difference between isinstance() vs type() is that isinstance() returns a boolean value, while type() returns a string