/********************* Tips for Using Ch *******************/

1) To get started, type "help" at the Ch shell prompt. 

2) In the Ch shell, you can simply type the C/Ch file name to run
   your program (you need to run "chmod +x file_name.c" first in Unix, Mac)
   If you have multiple files for a program, check
   the URL below to see how to run the program without Makefile:
   http://www.softintegration.com/support/faq/generalprog.html#2

3) Ch supports shell programming. Unix commands such as awk and sed
   can be used inside Ch scripts as in Perl, Bash, or csh. 
   Ch built-in string type string_t and foreach-loop are especially 
   useful for shell programming. Below is an example:

   string_t token, str="dir1 dir2 dir3";
   foreach(token; str) {
       mkdir $token
   }

   More at http://www.softintegration.com/docs/ch/shell/

4) Ch supports POSIX functions such as opendir() and readdir()
   for cross platform directory and file handling.  More at
   http://www.softintegration.com/demos/chstandard/posix.html

5) A better calculator for quick calculations, easy 
   to check if there is typo for the input number. For example:

   C:/> 23+344+23.02+343
   733.0200
   C:/> 733.02/4
   183.2550
   C:/>

6) Like in Unix, a command in Windows can be executed 
   in the background by appending "&" at the end of the command.
   For example,
         c:/> notepad &

7) Ch demos contain code for C90, C99, C++ and other features.
   More at http://www.softintegration.com/demos/chstandard/

8) Numerical computing and 2D/3D graphical plotting functions 
   are available in Ch Professional Editions.
   Check http://www.softintegration.com/products/chprofessional/
   
   For Numerical computing and web based numerical analysis, check:

    http://www.softintegration.com/webservices/numeric/
    http://www.softintegration.com/chhtml/lang/demos/lib/libch/numeric/
    http://www.softintegration.com/solution/engineering/

9)  Web-based graphical plotting, numerical analysis, and control system 
    design and analysis can be found at
    http://www.softintegration.com/webservices/

10) There are two ways to build functions used by Ch.
   i) to build functions used in Ch shell 
      You can put your function files in a directory and set your _fpath
       to include this directory. You can check sample ~/.chrc file which
       can get by running "ch -d".

   ii) To call your functions in static/dynamic libraries, check our Ch SDK
   at http://www.softintegration.com/products/sdk/chsdk/

11) To access Ch file functions or variables from Ch shell command line,
    please visit 
    http://www.softintegration.com/support/faq/generalprog.html#8
    http://www.softintegration.com/support/faq/generalprog.html#9

12) To embed Ch into your applications as a script engine, check our
    Embedded Ch http://www.softintegration.com/products/sdk/embedded_ch/ 

13)If you are looking for C++ graphical library for your applications,
   check http://www.softintegration.com/products/silib/graphlib/ 
   These graphical library functions have the same APIs in Ch 
   Professional Edition. They can run in Ch Professional
   Edition without compilation. 

14) If you are an experienced C/C++ user, you may only need to read 
    Appendices B and C in Ch User's Guide with comparison to C and C++, 
    plus Chapters 23 and 24 for 2D/3D plotting and numerical analysis 
    available in Ch Professional Edition.  Chapters 1, 2, 3, 
    and 4 will be useful to getting started to use Unix shell.