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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Commands tagged floating point from sorted by
Terminal - Commands tagged floating point - 9 results
dc -e"16i?dsH0sq2d17^ss8^dse2/1-stdlsle*/2*2B+an[[ FP Indef.]n]sQ[dls2//2%_2*53+an[NaN]ndle4*1-ls2/*=Q2Q]sN[1sqdls%0<N[oo]n]sMdls/le%dsdle1-=M[[]pq]sPlq1=P[r+0]s0ldd1r0=0lHls%rls*+sS2r^Alt4*^*lS*2lt^/ls/dsSZlt4*-1-sFlsZ1+klSdArZ1-^/dn0=P[e]nlFp"
2011-07-27 18:55:20
User: billyauhk

It handles all possible combination of the hex bytes, including NaNs, Infinities, Normalized and Subnormal Numbers...

This crazy DC stuff spent me a few days to write, optimize, polish and squeeze so that it works within the tight 255 character bound... You can modify it easily for other IEEE754 numbers, say, half, double, double-extended, quadruple (I hope someone will find this useful and submit more dc code to commandlinefu!)
wcalc -q <<< '3/5'
2010-07-07 20:31:21
User: smolav

Calculator for shell. Similar performance and basic usage as 'bc', but with more advanced features. Not installed on most systems by default.

exp="(2+3.0)/7.0*2^2"; val=$(awk "BEGIN {print $exp}" /dev/null)
2010-03-01 02:47:22
User: JeffChen
Functions: awk

a simple trick to do floating point operations in shell, use awk. You can evaluate any complicated expressions which can be evaluated in C.

calc() { awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'; }
b(){ echo "scale=${2:-2}; $1" | bc -l; }
2009-12-23 23:44:31
User: dadi
Functions: bc echo

terms inclosing '()' must be enclosed by "" (soft quotes)

bash variables must be referenced: b $x/$y

ugly bracket checking (balanced, fractions...)

default precision 2

echo $((3.0/5.0))
echo "5 k 3 5 / p" | dc
2009-09-03 00:21:54
User: xamaco
Functions: echo

using bc is for sissies. dc is much better :-D

Polish notation will rule the world...

bc -l <<< s(3/5)
2009-09-02 15:41:39
User: akg240
Functions: bc

-l auto-selects many more digits (but you can round/truncate in your head, right) plus it loads a few math functions like sin().

echo "scale=4; 3 / 5" | bc
2009-08-21 21:51:46
User: foob4r
Functions: echo

allows you to use floating point operations in shell scripts