Commands tagged floating point sorted by votes

Commands tagged floating point (9)

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floating point operations in shell scripts

allows you to use floating point operations in shell scripts Show Sample Output
This is sample output - yours may be different.
```
.6000
```
3

echo "scale=4; 3 / 5" | bc

foob4r · 2009-08-21 21:51:46 3
floating point operations in shell scripts

-l auto-selects many more digits (but you can round/truncate in your head, right) plus it loads a few math functions like sin(). Show Sample Output
This is sample output - yours may be different.
```
.56464247339503535720
```
3

bc -l <<< s(3/5)

akg240 · 2009-09-02 15:41:39 9
floating point operations in shell scripts

using bc is for sissies. dc is much better :-D Polish notation will rule the world... Show Sample Output
This is sample output - yours may be different.
```
.60000
```
2

echo "5 k 3 5 / p" | dc

xamaco · 2009-09-03 00:21:54 3
floating point operations in shell scripts

Calculator for shell. Similar performance and basic usage as 'bc', but with more advanced features. Not installed on most systems by default. Show Sample Output
This is sample output - yours may be different.
```
0.6
```
1

wcalc -q <<< '3/5'

smolav · 2010-07-07 20:31:21 4
Tell what is encoded in a float, given its HEX bytes

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!) Show Sample Output
This is sample output - yours may be different.
```
$> echo "7F7FFFFF" | dc -e"<this stuff>"
+3.40282346e38
$> echo "7F800000" | dc -e"<this stuff>"
+oo
$> echo "7FC00000" | dc -e"<this stuff>"
+QNaN
$> echo "FFC00000" | dc -e"<this stuff>"
-QNaN FP Indef.
```
1

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"

billyauhk · 2011-07-27 18:55:20 3
floating point bash calculator w/o precision

terms inclosing '()' must be enclosed by "" (soft quotes) bash variables must be referenced: b $x/$y ugly bracket checking (balanced, fractions...) default precision 2 Show Sample Output
This is sample output - yours may be different.
```
b 6*7 -> 42
b "e(1)" 6 -> 2.718281
a=1; b=1/7; b $a/$b -> 0.14
```
0

b(){ echo "scale=${2:-2}; $1" | bc -l; }

dadi · 2009-12-23 23:44:31 9
floating point shell calculator
This is sample output - yours may be different.
0

calc() { awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'; }

cfajohnson · 2009-12-25 19:08:16 5
floating point operations in shell scripts

a simple trick to do floating point operations in shell, use awk. You can evaluate any complicated expressions which can be evaluated in C. Show Sample Output
This is sample output - yours may be different.
```
echo $val  #2.85714
```
0

exp="(2+3.0)/7.0*2^2"; val=$(awk "BEGIN {print $exp}" /dev/null)

JeffChen · 2010-03-01 02:47:22 3
floating point operations in shell scripts
This is sample output - yours may be different.
-8

echo $((3.0/5.0))

andrew112358 · 2009-09-03 16:35:09 7

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Commands tagged floating point (9)

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