Numbers

There are two types of numbers in Idio: fixnums and bignums.

Fixnums are the regular integers we throw around: 1, 200, -10 etc.. They are pretty big, around +/- 2⁶¹ (or +/- 2²⁹ on 32-bit systems), enough to keep command orchestration users happy.

Bignums are for any floating point operations. You’ll automatically get a bignum based on source code (1.2 or 1e10) or mathematical operation (any division, anything that goes beyond the limits of a fixnum!).

numbers.idio

fn := 10

printf "fn: fn? %s: %s\n" (fixnum? fn) fn

bn := 1.2

printf "bn: bn? %s: %s\n" (bignum? bn) bn

r := fn + bn

printf "fn + bn: fn? %s: bn? %s: %s\n" (fixnum? r) (bignum? r) r

r = fn * bn

printf "fn * bn: fn? %s: bn? %s: %s\n" (fixnum? r) (bignum? r) r

r = fn + 1

printf "fn +  1: fn? %s: bn? %s: %s\n" (fixnum? r) (bignum? r) r

r = fn / 1

printf "fn /  1: fn? %s: bn? %s: %s\n" (fixnum? r) (bignum? r) r

$ idio numbers
fn: fn? #t: 10
bn: bn? #t: 1.200000e+00
fn + bn: fn? #f: bn? #t: 1.120000e+01
fn * bn: fn? #f: bn? #t: 1.200000e+01
fn +  1: fn? #t: bn? #f: 11
fn /  1: fn? #f: bn? #t: 1.000000e+01

Number Formats

You can use a variety of formats for inputting numbers:

number-formats.idio

printf "floating point numbers like %s %s %s\n" 1. 0.3e1 6E7

;; binary numbers with #b...
n := #b101
printf "#b is %b or %d\n" n n

;; octal numbers with #o...
n = #o101
printf "#o is %o or %d\n" n n

;; hexadecimal numbers with #x...
n = #x101
printf "#x is %x or %d\n" n n

$ idio number-formats
floating point numbers like 1.000000e+00 3.000000e+00 6.000000e+07
#b is 101 or 5
#o is 101 or 65
#x is 101 or 257

Last built at 2024-05-21T06:11:40Z+0000 from 77077af (dev) for Idio 0.3