libXpm package 缺失的解决办法

sudo apt-get install libxpm-dev
这样就解决了安装root软件中的一个关键问题

Keyboard Shortcuts for Bash ( Command Shell for Ubuntu, Debian, Suse, Redhat, Linux, etc)

Ctrl + A Go to the beginning of the line you are currently typing on
Ctrl + E Go to the end of the line you are currently typing on
Ctrl + L Clears the Screen, similar to the clear command
Ctrl + U Clears the line before the cursor position. If you are at the end of the line, clears the entire line.
Ctrl + R Let's you search through previously used commands
Ctrl + C Kill whatever you are running
Ctrl + D Exit the current shell
Ctrl + Z Puts whatever you are running into a suspended background process. fg restores it.

Alt + F Move cursor forward one word on the current line
Alt + B Move cursor backward one word on the current line
Tab Auto-complete files and folder names

run .c file in root

use
gyuan@frankie ~ $ root hsimple.C

or after open root

use

root [4] .x hsimple.C

编辑双系统电脑的boot 顺序

sudo pico /boot/grub/menu.lst
然后把
title Windows XP
root (hd0,0)
makeactive
chainloader +1

贴到

## ## End Default Options ##
之下，就搞定了！

mathematica 画图

Plot[f(x),{x,-4,4},PlotRange->{0,0.5},AxesLabel->{x,y}]