# Appendix C

# Index

ABS
  Mathematical Functions
ACOS
  Mathematical Functions
ARG
  Complex Functions
ARGCNT
  Variable and Parameter Functions
ASIN
  Mathematical Functions
ATAN2
  Mathematical Functions
ATAN
  Mathematical Functions
ATONUM
  Type Conversion Functions
Array Operations
  Array Operations
Arrays
  Arrays
BREAK Statement
  The BREAK Statement
BYTE Command
  Creating Arrays
BYTE Function
  Type Conversions
CALL Statement
  Calling User-defined Subroutines
CATARR
  Array Functions
CEIL
  Mathematical Functions
CHAR Command
  Creating Arrays
CHAR Function
  Type Conversions
CLOCK
  Time Functions
COMPLEX Command
  Creating Arrays
COMPLEX Function
  Type Conversions
CONJ
  Complex Functions
CONTINUE Statement
  The CONTINUE Statement
CONSHADE Quick Plot
  The CONSHADE Command
CONTOUR Quick Plot
  The CONTOUR Command
COS
  Mathematical Functions
COSH
  Mathematical Functions
Comment Statements
  Comment Lines
Constants
  Specifying Constants
DALLOC
  Memory Allocating Functions
DATBLK
  Data File Routines
DATCLS
  Data File Routines
DATCNT
  Data File Routines
DATE
  Time Functions
DATFIL
  Data File Routines
DATHDR
  Data File Routines
DATMAT
  Data File Routines
DATRAY
  Data File Routines
DATVAR
  Data File Routines
DO Statement
  The DO Statement
DOUBLE Command
  Creating Arrays
DOUBLE Function
  Type Conversions
Data Types
  Data Types
EXIT Command
  Termination of GCL
EXP
  Mathematical Functions
EXTERN Statement
  The EXTERN Statement
FALLOC
  Memory Allocating Functions
FCLOSE
  File Access
FFLUSH
  File Access
FGETC
  Text Input and Output Functions
FGETS
  Text Input and Output Functions
FLOAT Command
  Creating Arrays
FLOAT Function
  Type Conversions
FLOOR
  Mathematical Functions
FMOD
  Mathematical Functions
FOPEN
  File Access
FPRINTF
  Formatted Output to Files
FPUTC
  Text Input and Output Functions
FPUTS
  Text Input and Output Functions
FREAD
  Binary Input and Output Functions
FREE Command
  Freeing Variables
FSCANF
  Formatted Input from Files
FSEEK
  File Access
FTELL
  File Access
FUNCTION Statement
  The FUNCTION Statement
FWRITE
  Binary Input and Output Functions
GETENV
  System Functions
GOTO Statement
  The GOTO Statement
HELP Command
  Getting Help
IALLOC
  Memory Allocating Functions
IF Construct
  IF Constructs
IF Statement
  The IF Statement
IMAG
  Complex Functions
INCLUDE Command
  Including GCL Files
INT Command
  Creating Arrays
INT Function
  Type Conversions
KEYCNT
  Variable and Parameter Functions
LIST Command
  Listing Variables
LOG10
  Mathematical Functions
LOG
  Mathematical Functions
LOGON Command
  Logging Commands
MAXARR
  Array Functions
MINARR
  Array Functions
NUMTOA
  Type Conversion Functions
Operators
  Operators
PLOT Quick Plot
  The PLOT Command
PLOT3 Quick Plot
  The PLOT3 Command
PLOT3R Quick Plot
  The PLOT3R Command
PRINT Command
  The PRINT Command
RAND
  Random Number Functions
REMOVE
  File Access
RENAME
  File Access
RETURN Statement
  The RETURN Statement
REWIND
  File Access
SCATTR Quick Plot
  The SCATTR Command
SHORT Command
  Creating Arrays
SHORT Function
  Type Conversions
SIN
  Mathematical Functions
SINH
  Mathematical Functions
SQRT
  Mathematical Functions
SRAND
  Random Number Functions
STRING Function
  Type Conversions
STRLEN
  String Functions
STRLWR
  String Functions
STRREP
  String Functions
STRSTR
  String Functions
STRUPR
  String Functions
SUBARR
  Array Functions
SUBMAT
  Array Functions
SUBROUTINE Statement
  The SUBROUTINE Statement
SUBSTR
  String Functions
SURF3 Quick Plot
  The SURF3 Command
SURFACE Quick Plot
  The SURFACE Command
SURSHADE Quick Plot
  The SURSHADE Command
SWITCH Statement
  SWITCH Statements
SYSTEM
  System Functions
Strings
  Character Arrays and Strings
System Commands
  Executing System Commands
System Variables
  System Variables
TAN
  Mathematical Functions
TANH
  Mathematical Functions
TIME
  Time Functions
TRMLEN
  String Functions
TRPMAT
  Array Functions
Type Conversions
  Type Conversions
VARCNT
  Variable and Parameter Functions
VARDEF
  Variable and Parameter Functions
VARDIM
  Variable and Parameter Functions
VARTYP
  Variable and Parameter Functions
Variables
  Variables
WHILE Statement
  The WHILE Statement

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