how to create pdf in python using Reportlab

Plotting Sine wave with matplotlib in Python

Demonstration of Python program execution and C program Execution time ...

How to tar and gzip a file in linux

30 days with Ubuntu linux

If you really thinking out of windows Os, please go through this tutorial after installing ubuntu https://help.ubuntu.com/community/Installation/FromUSBStick 30 days with Ubuntu Linux - http://www.pcworld.com/article/229187/30_days_with_ubuntu_linux.html?page=2

Ubuntu internet wifi speed increase tip

Probably you can try the below steps in the Ubuntu machine to see whether your Internet speed is increasing or not

Step1:Put the below code in the bottom of the file using the bellow command



sudo vi /etc/sysctl.conf

net.core.rmem_default = 524288
net.core.rmem_max = 524288
net.core.wmem_default = 524288
net.core.wmem_max = 524288
net.ipv4.tcp_wmem = 4096 87380 524288
net.ipv4.tcp_rmem = 4096 87380 524288
net.ipv4.tcp_mem = 524288 524288 524288
net.ipv4.tcp_rfc1337 = 1
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_ecn = 0
net.ipv4.route.flush = 1

Step2: run the below command
sudo sysctl -p

You can also disable your IPv6

Step1: go Wifi symbol and click it , you will get a edit connection option

Step2: select the wifi you are using and edit the configuration , in IPv6 configuration , select method as 'ingnore'

how to write multiple files c programs and make/compile it together

Honestly this is the first time I am trying to write multiple file C program and trying to compile it together.
Details are explained in the below video

Learn Python Through Public Data Hacking

Building python

I have installed Ubuntu again in Dell laptop to experiment Cpython internals http://naveendavisv.blogspot.in/2015/08/cpython-internals-interpreter-and.html.

I have managed to download the Python source gz file from https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tar.xz and edit the cevel.c internal program in python and I have added printf("naveen") in infinite for loop in the program.

and I did below steps steps-
1. ./configure
2. make



the make printing 'naveennaveen...' as expected,

but what i am not understading , is the make command do both compiling the C program and running the executables ? I am not clear how cevel.c is running while we do MAKE ?

 make commnad - http://www.computerhope.com/unix/umake.htm http://linoxide.com/how-tos/linux-make-command-examples/

CPython internals - Interpreter and source code overview - Lecture 1

Online Python Tutor

Online Python Programming Tutor

First time I am seeing the very nice online tutor for Python http://www.pythontutor.com/visualize.html#mode=display

After writing the code , when you click on the Forward button , the flow of the statement can be seen in the program listing , at the same time variables values are listing in the right side.. its interesting .. Try this below

Embedded Systems Programming Course

Learn and Understand AngularJS - The First 50 Minutes

Why you need to compile your C program in GCC

GCC Compiler:

10 reason why we need to move to GCC -
http://stackoverflow.com/questions/1313702/gcc-compiler-advantage

If you need to compile C program, always go for GCC. You can find GCC online documentation in the below link http://naveendavisv.blogspot.com/2008/09/gcc-online-documentation.html



GCC and cross compilation


What is cross compilation - https://en.wikipedia.org/wiki/Cross_compiler

how to use GCC as cross compiler - http://wiki.osdev.org/GCC_Cross-Compiler

How to use GCC to compile ARM code :

https://launchpad.net/gcc-arm-embedded

http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html

http://askubuntu.com/questions/487082/compiling-c-code-for-arm-processor-on-ubuntu-12-04


How to use GCC for PIC :

http://hackaday.com/2010/11/03/how-to-program-pics-using-linux/

Why linux ?

Why Linux ?

More than an operating system, Linux is a nice learning platform which takes you through some challenges always..

And there is great community loves GNU

why Linux, reasons is explained nicely in this website http://www.whylinuxisbetter.net/

Linux commands - http://www.tutorialspoint.com/listtutorial/Linux-Shell-commands/2596

Linux Concepts - http://www.tutorialspoint.com/listtutorials/linux/basic-concepts/1

Get Ubuntu Linux here - http://www.ubuntu.com/download

Angular.js + Node.js+ Express.js

Experimenting Angular.js with Node

I was actually trying to install angular.js seed on Node.js that I found in the below link
http://briantford.com/blog/angular-express

Angularjs tutorial - http://www.w3schools.com/angular/

codeacademy angularjs - https://www.codeacademy.com/courses/learn-angularjs

succeeded to the run application - node app.js .. after copying the zip file to the folder .

I got some errors while running the app.js  like  most middleware like "errorhandler is not bundled to the express". I just commented out the error handler statements and ran the app.

http://localhost:3000/

How to start with Texas lanuchpad

TEXAS LAUNCHPAD
Electrical,electronics and computer science engineering students should program something with launchpad before you pass out :-)

Theye are lot of tutorials available and it's very cheap. It's worth of spending money for it.


 http://www.ti.com/ww/en/launchpad/launchpad.html?DCMP=rtos&HQS=ep-sdo-rtos-pr-lp-launchpad-en

  http://hackaday.com/2010/08/11/how-to-launchpad-programming-with-linux/

How to start web application with docker for free

Below is good article that we can flow to create and run a Web application using docker.

https://blog.codeship.com/running-mean-web-application-docker-containers-aws/

How to use Docker ?

First of all , what is docker ?... I came across docker when I was searching for code editor and how to compile C code form web applications.
http://qnimate.com/create-an-frontend-editor-with-code-highlighting-and-execution/

 Docker - https://www.docker.com/

Docker is an open-source project that automates the deployment of applications inside software containers, by providing an additional layer of abstraction and automation of operating-system-level virtualization on Linux. https://en.wikipedia.org/wiki/Docker_(software)

I actually want to run the code in a virtual machine ( for this idea http://naveendavisv.blogspot.com/2015/08/thinking-to-build-microcontroller.html) and show the output in a text area, even though I don't need the full output, but if  the code can be checked for syntax error, I am much happy...

Embedded programming students must read websites

My suggestions :

http://www.arm.com/support/university/

http://www.element14.com/community/groups/arduino?forceNoRedirect=true

http://pramode.net


Found in google


http://www.quora.com/What-are-some-blogs-websites-to-read-about-Embedded-Systems

Electrical student must read websites

Electrical student must read websites

http://www.electricalengineeringschools.org/engineer-resources/