Simple zsh calculator
Everything comes from: https://github.com/arzzen/calc.plugin.zsh
A very simple handy zsh function to perform simple calculation from the zsh shell:
# bc - An arbitrary precision calculator language
function =
{
echo "$@" | bc -l
}
alias calc="="Usage:
# addition
root@pc:~$ = 5+3
8
# multiplication
root@pc:~$ = '4*2'
8
# subtraction
root@pc:~$ = -4-2
-6
# division
root@pc:~$ = 4/2
2.00000000000000000000
# square root
root@pc:~$ = "scale=30; sqrt(2)"
1.414213562373095048801688724209
# power
root@pc:~$ = "6^6"
46656
# parentheses
root@pc:~$ = "(6^6)^6"
10314424798490535546171949056
# convert from decimal to hexadecimal
root@pc:~$ = "obase=16; 255"
FF
# convert from decimal to binary
root@pc ~$ = "obase=2; 12"
1100
# convert from binary to decimal
root@pc ~$ = "ibase=2; obase=A;1100"
12
# convert from hexadecimal to decimal
root@pc ~$ = "ibase=16; obase=A;FF"
255
# arctangent
root@pc ~$ = "a(1)"
.78539816339744830961
# PI value
root@pc ~$ = "scale=10; 4*a(1)"
3.1415926532
# more complex
root@pc ~$ = "scale=2; 3.4+7/8-(5.94*(4*a(1)))"
-14.26