Platform-independent programming tool. Many scripting languages have claimed that their syntax resembles C or C++, but they are not C or C++. Their coding style and syntax are different from C/C++. Ch is a superset of C language. It parses and executes C code directly without intermediate code or byte code. It does not distinguish interpreted code from compiled C/C++ code. Ch is the most complete C interpreter in existence. Ch is embeddable in other application programs and hardware. Ch supports ISO C standard (C90), major new features in C99, classes in C++, POSIX, X/Motif, Windows, OpenGL, ODBC, GTK+, C LAPACK, CGI, 2D/3D graphical plotting, advanced numerical computing, and shell programming. Moreover, Ch has many salient features from other languages and software packages. C is for low-level system programming and embedded systems\; C++ for large-scale projects\; Ch for platform-independent script computing. If your applications need high performance, you can deploy and compile your code as native code with a C/C++ compiler. For rapid application development, fast time-to-market, and running across platform without tedious compile/link cycles, Ch will be the best choice. Ch is optimal for numerical computing and visualization, embedded scripting, web programming and plotting, safe network computing, shell programming, integration with legacy systems, integration and control of mechatronic systems, and teaching and learning. Ch allows you to write C/C++ code once in one platform, run it in all other platforms including Windows, Linux, MacOS X, Solaris, and HP-UX.