HP (Hewlett-Packard) 50g ユーザーズマニュアル

Page 2-66

`

(keeping a second copy in the RPN stack)

³~ „t`

Use the following keystroke sequence to enter the QUAD command:  
‚N~q

(use the up and down arrow keys, —˜ , to select 

command QUAD) ,  press 

@@OK@@  .  The screen shows the principal solution:

Now, change the setting of flag 01 to General solutions: H

@FLAGS@   @@CHK@@   

@@OK@@  @@OK@@ . And try the solution again:  ƒ³ ~ „t`
‚N~q

(use the up and down arrow keys, —˜ , to select 

command QUAD) ,  press 

@@OK@@  .  The screen now shows the two solutions:

Bring up once more the current flag setting by pressing the H button, and 
then the

@FLAGS! soft menu key.   Make sure to clear system flag 01, which was 

left set from the previous exercise.  Use the up and down arrow keys (—˜)
to move about the system flag list.
Some flags of interest and their preferred value for the purpose of the exercises 
that follow in this manual are:
02 Constant 

→ symb:    Constant values  (e.g., π) are kept as symbols 

→ symb:   Functions are not automatically evaluated, instead 

they are loaded as symbolic expressions.

→ (X,Y):

Complex numbers are represented as ordered pairs

α][α] locks:

The  sequence  ~~locks the alphabetic keyboard

Press 

@@OK@@  twice to return to normal calculator display.