Learning Julia

Playing with integers in REPL

We can get a better understanding of integers using the REPL.

$ juliajulia> 2424julia> typeof(24)Int64

Here, it is Int64 because we are on a 64-bit system. If we were on a 32-bit system, then the default integer type would have been Int32.

We can check what the default word size (architecture) of the system we are working on is:

julia> Sys.WORD_SIZE64

The type of architecture is also mentioned on the Julia banner when we start the REPL.

The architecture is mentioned on the last line:

x86_64-linux-gnu

This means that we are using Linux and are on the x86_64 (64-bit) platform. If you are on a 32-bit platform, you might get i386.

In a scenario where we are dealing with large numbers that cannot be represented by ...