added fib.awk, a solution to fib eqn (example in Hamming text);

removed pi.sh (redundant);
added corrections to quad_reg

1 files changed, 0 insertions, 24 deletions

diff --git a/pi.sh b/pi.sh
deleted file mode 100644
index 83af08a..0000000
--- a/pi.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/sh
-
-### pi.sh, https://en.wikipedia.org/wiki/Pi
-# In 1706 John Machin used the Gregory–Leibniz series to produce an algorithm
-# that converged much faster. Machin reached 100 digits of π with this
-# formula. Other mathematicians created variants, now known as Machin-like
-# formulae, that were used to set several successive records for calculating
-# digits of π. Machin-like formulae remained the best-known method for
-# calculating π well into the age of computers, and were used to set records
-# for 250 years, culminating in a 620-digit approximation in 1946 by Daniel
-# Ferguson–the best approximation achieved without the aid of a calculating
-# device.
-
-awk -v fig=${1} '
-    function pi() {
-        return 4*(4*atan2(1,5) - atan2(1,239))
-    }
-    BEGIN {
-        if (fig <= 0)
-            fig = 6
-        str = "%." fig "g\n"
-        printf(str, pi())
-    }
-'