Real constants and functions

Arturo

<lang rebol>print ["Euler:" epsilon] print ["Pi:" pi]

print ["sqrt 2.0:" sqrt 2.0] print ["ln 100:" ln 100] print ["log(10) 100:" log 100 10] print ["exp 3:" exp 3] print ["abs -1:" abs neg 1] print ["floor 23.536:" floor 23.536] print ["ceil 23.536:" ceil 23.536] print ["2 ^ 8:" 2 ^ 8]</lang>

Output:

Euler: 2.718281828459045 
Pi: 3.141592653589793 
sqrt 2.0: 1.414213562373095 
ln 100: 4.605170185988092 
log(10) 100: 2.0 
exp 3: 20.08553692318767 
abs -1: 1 
floor 23.536: 23 
ceil 23.536: 24 
2 ^ 8: 256