Learning Julia

Variables in Julia

Just as in other programming languages, we use a variable to store a value that is obtained from a computation or external source.

Start the REPL by typing julia in the Terminal:

$ julia# assign 100 to a variable xjulia> x = 100100# multiple the value in the variable by 5julia> x*5500

We can change the values stored in a variable or mutate the state:

# assign a different value to x# this will replace the existing value in xjulia> x = 2424# create another variable yjulia> y = 1010

Simple operations, such as swapping, are easy:

# swap values of x and yjulia> x,y = y,x(10,24)julia> x10julia> y24

The names of variables can start with a character or a "_" (underscore). Julia also allows Unicode names (UTF-8), but not all Unicode ...