Chapter 5: DISGCL Commands

5.1 Termination of DISGCL

The call is:

EXIT

5.2 Getting Help

The call is:

HELP

5.3 Including DISGCL Files

INCLUDE

'file[.gcl]'

Additional notes:

• Up to 8 include files can be nested.
• DISGCL searches the current working directory for the filename. If the search fails, DISGCL searches the directory defined by the environment variable GCL_PATH.

5.4 Listing Variables

The call is:

LIST [option] [v1, v2, ..., vn]

option	can have the values -s and -u. If -s is used, only system variables are listed, if -u is used, only user-defined variables are listed.
v1, v2, .., vn	are the names of variables. If no variables are specified, all defined variables are listed.

5.5 Freeing Variables

The call is:

FREE v1, v2, ..., vn

v1, v2, .., vn

are the names of variables.

5.6 The PRINT Command

The call is:

PRINT expr1, expr2, ..., exprn

expr1, expr2, .., exprn

are expressions.

5.7 Logging Commands

The call is:

LOGON cfil

cfil	is a string containing a filename.

Additional notes:

• Logging can be terminated with the command LOGOFF.
• A log file can be executed with the DISGCL command, or can be included into a DISGCL session with the INCLUDE statement.
• If the file cfil already exists, a new file version will be created.

5.8 Creating Arrays

The call is:

FLOAT list

list	is a list of arrays with dimension specifications separated by commas.

Example:

FLOAT A[10], B[5,10] creates an array A with 10 elements and a matrix B with 5 rows and 10 columns.