Numbers

There are three primitive numeric types in Wall: int, float and complex.

int

In Wall, int represents and integer. Integers in Wall are unbounded, which means they can be as big or tiny as you'd like to be. Groups of three digits can be separated by an underscore (_).

w> 5
5
w> 0
0
w> -1
-1
w> -0
0
w> 1_000_000_000
1_000_000_000
w> -999999
-999_999

real

real-s are represented as double-precision floating numbers in Wall.

w> 5.1
5.1
w> 0.0
0.0
w> -1.3
-1.3
w> -1_000_000_000.000_000
1_000_000_000.0
w> -999999.001_300_0
-999_999.0013

complex

complex numbers work like int-s and real-s: the real part can be either an int or a real, and the imaginary part can be an int or a real. Note that, to define a complex number, you must either separate the real and imaginary part by + or - or use the . postfix notation.

w> 0-4j
0-4j
w> 1+3.2j
1+3.2j
w> 4j .+ 3.1416 
3.1416+4j