COMP SCI 110 Quiz 1

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(int) = integer = positive or negative whole numbers
(float) = floating point number = real numbers, like -2.5
(str) = string = character text "hello world"
strings are contained in matching quotes (single or double)
+ = addition
addition (+) adds values on either side of the operator
– = subtraction
subtraction (–) subtracts right hand operand from left hand operand
* = multiplication
multiplication (*) multiplies values on either side of the operator
/ = division
division (/) divides left hand operator by right hand operator
** = exponent
exponent (**) performs exponential (power) calculation on operators
% = modulus
modulus (%) divides left hand operand by right hand operand, returns remainder
// = quotient
quotient (//) divides left hand operand by right hand operand, returns quotient
= is the assignment operator
operators perform on operands
+ (on strings) = addition
string addition adds the left and right operands
* (on strings) = repetition
repetition repeats the left string a number of times specified by the right operand
python is case sensitive
snake case = all lowercase, underscores for spaces
function calls always consist of the function name and a set of parentheses
variables allow us to store and access data
the first character of a variable cannot be a digit
inputs in a function are separated with commas
positional parameters are required
order matters for positional parameters
keyword parameters are always optional and always specified by their keyword
keywords are always passed into a function after positional parameters
order of keyword parameters (after positional parameters) doesn't matter
keyword parameters always have a default value
reporter functions return a value
(input) prompts the user for some data, and reports back (returns) the user input as a string
functions are described with a type signature, which specifies what the function takes as input, and what they give as output
a function header begins with def and ends with a colon