Errn; Euler; Eval - HP 48gII Advanced User's Reference Manual

Input/Output:
See also: DOERR, ERRN, ERR0

ERRN

Type: Command
Description: Error Number Command: Returns the error number of the most recent calculator error.
If the most recent error was generated by DOERR with a string argument, ERRN returns
#70000h. If the most recent error was generated by DOERR with a binary integer argument,
ERRN returns that binary integer. (If the most recent error was generated by DOERR with a
real number argument, ERRN returns the binary integer conversion of the real number.) The
only exceptions to these rules are 0 DOERR and #0 DOERR, both of which set ERRN to
#31Fh and ERRM to 'Interrupted'.
!°LL
Access:
Input/Output:
See also: DOERR, ERRM, ERR0

EULER

CAS: Return the number of integers less than an integer that are co-prime with it. (Euler's

EVAL

Type: Command
Description: Evaluate Object Command: Evaluates the object.
The following table describes the effect of the evaluation on different object types.
Object Type
Local Name
Global Name
Program
3-58 Full Command and Function Reference
Level 1/Argument 1
ERROR ERRN
Level 1/Argument 1
Recalls the contents of the variable.
Calls the contents of the variable:
• A name is evaluated.
• A program is evaluated.
• A directory becomes the current directory.
• Other objects are put on the stack.
If no variable exists for a given name, evaluating the
name returns the name to the stack.
Enters each object in the program:
• Names are evaluated (unless quoted).
• Commands are evaluated.
• Other objects are put on the stack.
List Enters each object in the list:
• Names are evaluated.
• Commands are evaluated
• Programs are evaluated.
• Other objects are put on the stack.
( °is the left-shift of the Nkey).
Effect of Evaluation
Level 1/Item 1
"error message"
Level 1/Item 1
#nerror
function.)