diff options
Diffstat (limited to 'awklib/eg')
-rw-r--r-- | awklib/eg/lib/div.awk | 17 | ||||
-rw-r--r-- | awklib/eg/prog/pi.awk | 18 |
2 files changed, 35 insertions, 0 deletions
diff --git a/awklib/eg/lib/div.awk b/awklib/eg/lib/div.awk new file mode 100644 index 00000000..5939024d --- /dev/null +++ b/awklib/eg/lib/div.awk @@ -0,0 +1,17 @@ +# div --- do integer division + +# +# Arnold Robbins, arnold@skeeve.com, Public Domain +# July, 2014 + +function div(numerator, denominator, result) +{ + split("", result) + + numerator = int(numerator) + denominator = int(denominator) + result["quotient"] = int(numerator / denominator) + result["remainder"] = int(numerator % denominator) + + return 0.0 +} diff --git a/awklib/eg/prog/pi.awk b/awklib/eg/prog/pi.awk new file mode 100644 index 00000000..3297beff --- /dev/null +++ b/awklib/eg/prog/pi.awk @@ -0,0 +1,18 @@ +# pi.awk --- compute the digits of pi +# +# Katie Wasserman, katie@wass.net +# August 2014 + +BEGIN { + digits = 100000 + two = 2 * 10 ^ digits + pi = two + for (m = digits * 4; m > 0; --m) { + d = m * 2 + 1 + x = pi * m + div(x, d, result) + pi = result["quotient"] + pi = pi + two + } + print pi +} |