HP (Hewlett-Packard) 50g ユーザーズマニュアル

Page 21-47

In this section we presents examples using the constructs IF…THEN…END and 
IF…THEN…ELSE…END.

The IF…THEN…END is the simplest of the IF program constructs.  The general 
format of this construct is:  

IF logical_statement THEN program_statements END

.

The operation of this construct is as follows: 

1. Evaluate logical_statement.
2. If logical_statement is true, perform program _statements and continue 

program flow after the END statement.

3. If logical_statement is false, skip program_statements and continue 

program flow after the END statement.

To type in the particles IF, THEN, ELSE, and END, use: 

„°

@)@BRCH@   @)@IF@@

The functions 

  @@@IF@@  @@THEN @@ELSE@    @@ END@@ are available in that menu to be typed 

selectively by the user.  Alternatively, to produce an IF…THEN…END construct 
directly on the stack, use:

„°

@)@BRCH@  „  @)@IF@@

This will create the following input in the stack: