Código:
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#+-
#+- Title: Quadratic Graph Plotter v0.1
#+- Author: jahwi Offline
#+- Category: Tool Graph
#+- Description : This is a useful script that plots quadratic graphs.
#+- 1. I did not include an input sanitation function, so unexpected input will yield unexpected results.
#+- 2. The script only supports a range of -3 to 3 on the X axis
#+- 3. The table of values' display is not properly aligned
#+- Date Release : 2016-08-19
#+-
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########################################################################################Código:
@echo off
:begin
cls
setlocal enabledelayedexpansion
call :trash a b c minus minusb minusc
set pn=Quadratic Graph Plotter
title !pn!
echo Quadratic graph plotter in batch
echo Made by Jahwi in 2016
echo.
echo.
echo.
echo Quick Help:
set spc=
echo !spc!Suppose you have a quadratic equation such as:
echo !spc!Xý+2X+3
echo !spc!to use this script, you must divide the equation onto three sections:
echo.
ECHO !spc!SECTION A B C
echo !spc!Xý+2X+3
echo !spc!When propmted for A, input the COEFFICIENT OF Xý ^(which is 1 in the above example)
echo !spc!when prompted for B, input the COEFFICIENT of X ^(which is 2 in the above example^)
echo !spc!when prompted for C, ehter the CONSTANT (which is 3 in the above example)
echo.
echo.
echo !spc!^[PRESS ANY KEY^]
pause >nul
set /p a=Enter A:
set /p b=Enter B:
echo !b!|findstr /c:"-" >nul 2>&1
if !errorlevel!==1 set b=+!b!
set /p c=Enter C:
echo !c!|findstr /c:"-" >nul 2>&1
if !errorlevel!==1 set c=+!c!
choice /c yn /n /m "Your expression is !a!Xý!b!X!c!^? ^(y/n^)"
if !errorlevel!==2 goto :begin
set exp=!a!Xý!b!X!c!
cls
echo Generating Table of values for !exp!...
echo using range of -3 to 3,
set es=
::call :qlen !a!
echo.
echo.
::echo on
for %%b in (-3 -2 -1 0 1 2 3) do (
set da=
set db=
set dy=
set /a da=!a!*%%b*%%b
set fx%%b=!da!
echo !da!|findstr /c:"-" >nul 2>&1
if !errorlevel!==1 set da=+!da!
set fl=!fl!!es!!fx%%b!
set /a db=%%b*!b!
echo !db!|findstr /c:"-" >nul 2>&1
if !errorlevel!==1 set db=+!db!
set sx%%b=!db!
set sl=!sl!!es!!sx%%b!
set /a dy=!da!!db!!c!
set yx%%b=!dy!
set yl=!yl!!es!!yx%%b!
)
call :trash da db dy
::echo !fl!
::echo !sl!
echo ---------------------------------------------------------
echo [X] -3 -2 -1 0 1 2 3
echo _________________________________________________________
echo ---------------------------------------------------------
echo [!a!Xý]!fl!
echo [!b!X]!sl!
echo [!c!] !es!!c! !c! !c! !c! !c! !c! !c!
echo _________________________________________________________
echo ---------------------------------------------------------
echo [Y] !yl!
set maxy=-1000
set miny=1000
for %%c in (-3 -2 -1 0 1 2 3) do (
if !yx%%c! GTR !maxy! set maxy=!yx%%c!
if !yx%%c! LSS !miny! set miny=!yx%%c!
)
echo Maximum value on the Y axis is !maxy!
echo Minumum value on the Y axis is !miny!
echo !spc!^[PRESS ANY KEY^]
pause >nul
cls
set mis=
echo Plotting Graph:
if !miny! GTR 0 set miny=-1
for /l %%d in (!maxy!,-1,!miny!) do (
for %%f in (-3 -2 -1 0 1 2 3) do (
if "!yx%%f!"=="%%d" (
set si%%f=*
set mis=
)
)
if "!si0!"=="" set si0=I
echo !si-3!!mis!!si-2!!mis!!si-1!!mis!%%d!si0!!mis!!si1!!mis!!si2!!mis!!si3!
call :clean
)
echo !spc!^[PRESS ANY KEY^]
pause >nul
exit
:trash
::resets unused variables
set takeout=%*
for %%a in (!takeout!) do (
set %%a=
)
set takeout=
exit /b
:qlen
set str=%*
::queries the length of input
::got it from stack Overflow
ECHO !str!>%temp%\tempfile.txt
FOR %%? IN (%temp%\tempfile.txt) DO ( SET /A sl=%%~z? - 2 )
set str=
exit /b
:clean
for %%c in (-3 -2 -1 0 1 2 3) do (
set si%%c=
)
exit /b
mega.nz - [Code] Quadratic Graph Plotter v0.1