tcbasic man page on DragonFly
[printable version]
TCBASIC(1) User Commands TCBASIC(1)
NAME
tcbasic - a small BASIC Interpreter written in C
SYNOPSIS
tcbasic [filename]
DESCRIPTION
tcbasic implements a small subset of BASIC in portable C. If the user
specifies a filename on the command line or pipes data to tcbasic, the
results will be written to standard out. If no file is specified, an
interactive mode is started where a user can interact with the BASIC
system directly.
OPTIONS
-h, -? --help
Print a helpful message and exit
-v --version
Print version information and exit
STATEMENTS
REM remark
Remark has no effect on the execution of the program and acts as
a comment to the developer. The remark can contain any charac‐
ter.
PRINT list
Prints the contents of 'list' to the console where 'list' is a
comma separated list of one or more quoted strings, expressions,
and/or variables.
IF expression relop expression THEN statement
Evaluates both 'expression's and compares them using relational
operator 'relop'. If the relation is true, then the statement
will be executed. Otherwise, the statement is skipped.
GOTO expression
Evaluates 'expression' and jumps to the corresponding line num‐
ber.
INPUT var_list
Given a comma separated list of 1 or more variables, this com‐
mand will prompt the user to enter a comma separated list of
expressions. The value of each expression will be assigned to
each corresponding variable.
GOSUB expression
Evaluates 'expression' and jumps to the corresponding line num‐
ber after saving the current line number.
RETURN Returns control to the line after the last 'GOSUB' call.
LET var = expression
Assigns the value of expression to variable 'var' where 'var' is
a single character variable name in the range from A to Z.
END Ends the execution of the program.
STOP Exits the interpreter.
RANDOMIZE
Re-seeds the random number generator, causing RND to return a
different sequence of random numbers.
FUNCTIONS
RND Returns a random number in the range [0,1). The same sequence of
numbers is returned in each program run. Use the RANDOMIZE
statement to generate different sequences in each program run.
SIN (expression)
Returns the sine of the given expression (measured in radians).
COS (expression)
Returns the cosine of the given expression (measured in radi‐
ans).
TAN (expression)
Returns the tangent of the given expression (measured in radi‐
ans).
COT (expression)
Returns the cotangent of the given expression (measured in radi‐
ans).
ATN (expression)
Returns the arctangent of the given expression (measured in
radians).
EXP (expression)
Returns e to the power of the given expression.
LOG (expression)
Returns the natural logarithm of of the given expression.
ABS (expression)
Returns the absolute value of the given expression.
SQR (expression)
Returns the square root of the given expression.
COMMANDS
CLEAR Clears the program from memory and sets all variables to 0.
LIST Prints the current program.
RUN Executes the current program.
AUTHORS
See https://github.com/tcort/tcbasic/graphs/contributors
REPORTING BUGS
See https://github.com/tcort/tcbasic/issues
COPYRIGHT
Copyright © 2015 Thomas Cort <linuxgeek@gmail.com>
This is free software; see the source for copying conditions. There is
NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
tcbasic 2.1.0 May 2015 TCBASIC(1)
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