mirror of
https://git.disroot.org/FollieHiyuki/dotfiles.git
synced 2024-12-02 12:18:41 -05:00
47 lines
2.2 KiB
Bash
Executable File
47 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
# validate expression
|
|
originalEquation=$(echo "$2" | sed "s/\[/\(/g" | sed "s/\]/\)/g")
|
|
parsedExpression=$(echo "$2" | sed "s/\[/\(/g" | sed "s/\]/\)/g" | grep -Eo "[0-9 + -- / * ^ . a-z A-Z ~ : ( ) ]*")
|
|
if [ "$parsedExpression" != "$originalEquation" ]; then
|
|
echo "Error: Expression contains invalid characters"
|
|
return 1
|
|
fi
|
|
|
|
equation=$(echo "$originalEquation" | sed "s:/:(over):g" | sed "s/~/|/g" | sed "s/-/%2D/g")
|
|
operation=$(echo "$1" | tr "[[:upper:]]" "[[:lower:]]")
|
|
|
|
curl -s https://newton.now.sh/api/v2/$operation/"$equation" | grep -Eo '"result":"[a-z A-Z 0-9 ( ) \^ / -- + , ]*' | sed s/'"result":"'//g | tr '"' " "
|
|
|
|
# Usage: newton [operation] [expression]
|
|
# Examples:
|
|
# ===================================================
|
|
# |Operations Sample Expression Sample Result|
|
|
# |---------------------------------------------------|
|
|
# |Simplify [[2x^2]+7]*[4x^2] 8 x^4 + 28 x^2 |
|
|
# |Factor x^2 + 2x x (x + 2) |
|
|
# |Derive x^2+2x 2 x + 2 |
|
|
# |Integrate x^2+2x 1/3 x^3 + x^2 +C|
|
|
# |Roots/Zeroes x^2+2x 2, 0 |
|
|
# |Tangent 2~x^3 12 x + -16 | (Finding tangent line when x=2 for expression x^3)
|
|
# |Area 2:4~x^3 60 | (Finding area under curve from 2 to 4 for expression x^3)
|
|
# |Cos pi -1 |
|
|
# |Sin pi 0 |
|
|
# |Tan pi/4 1 |
|
|
# |ArcCos 1 0 |
|
|
# |ArcSin 0 0 |
|
|
# |ArcTan pi arcsin(pi) |
|
|
# |Abs -2 2 |
|
|
# |Log 2~8 3 | (Log base 2 of eight)
|
|
# ===================================================
|
|
# Valid Symbols:
|
|
# + add
|
|
# - subtract
|
|
# [ left parenthesis (you must use brackets bash has a bultin for parenthesis)
|
|
# ] right parenthesis (you must use brackets bash has a bultin for parenthesis)
|
|
# * multiply
|
|
# / divide
|
|
# ^ power
|
|
# : between the range of left and right side (only for area under curve)
|
|
# ~ parameter on right side (only for area, tangent line and log)
|