HP Prime Graphing NW280AAABA manual Commands under the Tmplt menu Block, Branch

Commands under the Tmplt menu

Block

The block commands determine the beginning and end of a sub-routine or function. There is also a Return command to recall results from sub-routines or functions.

BEGIN END Syntax: BEGIN command1; command2;…; commandN; END;

Defines a command or set of commands to be executed together. In the simple program:

EXPORT SQM1(X)

BEGIN

RETURN X^2-1;

END;

the block is the single RETURN command.

If you entered SQM1(8) in Home view, the result returned would be 63.

RETURN Syntax: RETURN expression;

Returns the current value of expression.

KILL Syntax: KILL;

Stops the step-by-step execution of the current program (with debug).

Branch

In what follows, the plural word commands refers to both a single command or a set of commands.

IF THEN Syntax: IF test THEN commands END;

Evaluate test. If test is true (not 0), executes commands.

Otherwise, nothing happens.

IF THEN ELSE Syntax: IF test THEN commands1 ELSE commands 2 END;

Evaluate test. If test is true (non 0), executes commands 1, otherwise, executes commands 2

528 Programming in HP PPL