web developers must learn 3 languages :

- HTML defines the content of a web page
- CSS describes the layout of a web page
- JavaScript manipulates the behavior of web pages

- LaTeX showing mathematical notation for web pages
- mathHandbook = Math Handbook Language : math calculation and plot

from bottom to top: operating system -> server -> database -> application

Cloud computing runs on any phone, iPhone, tablet, web, computer. No need to download, just forward link to share interaction.

Cloud computing 云计算 = Web Address calculator 网址计算器 = URL calculator = mobile platforms = web calculator = programming platform = online coding = online programming

Input your formula x from URL in browser to compute x, and share your computation with URL. please replace the plus sign

- DrHuang.com/input/?i=d(x) : differentiate x, and plot.
- DrHuang.com/input/?i=d(x)? : show the d(x) source code
- DrHuang.com/input/?i=help? : show the help page
- DrHuang.com/input/plot?i=x : plot x in the graph.
- DrHuang.com/input/plot2D?i=x : plot x in the 2D graph.
- DrHuang.com/input/plot3D?i=x : plot x in the 3D graph.
- DrHuang.com/input/plot3DIE?i=x : plot x in the 3D graph by Microsoft Internet Brower IE.
- DrHuang.com/input/contour3D?i=x : plot x in the contour 3D graph.
- DrHuang.com/input/complex3D?i=x : plot x in the complex 3D graph.
- DrHuang.com/input/implicit3D?i=x : plot x in the implicit 3D graph.
- DrHuang.com/input/parametric3D?i=x : plot x in the parametric 3D graph.
- DrHuang.com/input/spin3D?i=x : plot x in the spin 3D graph.
- DrHuang.com/input/wireframe3D?i=x : plot x in the wireframe 3D graph.
- DrHuang.com/input/htm?i=test : show a htm page of the file name test.
- DrHuang.com/input/code?i=test : code a htm page for the file name test.

HTML + CSS + JavaScript + LaTeX + graph programing - DrHuang.com/input/python?i=test : python programing for the file name test.
- DrHuang.com/input/math?i=x : math programming x in the math calculator.
- DrHuang.com/input/math : math programming x in the math calculator.
- DrHuang.com/input = mathHand.com =
mathHandbook.com :
**math hand**in the math calculator.

please read online manual part 2 programmer's guide. - chinese.mathHand.com =
**math**programing by**hand**in Chinese.

(1) Use the staged life cycle Strict management is planned.

(2) Adhere to the stage review.

(3) Implement strict product control.

(4) Adopt modern programming technology.

(5) Software engineering results should be clearly reviewed.

(6) The personnel of the development team should be small and precise.

(7) Recognize the need for continuous improvement of software engineering practices.

Advanced Mathematics , Software Engineering

Course video