ERR0

Type:

Command

 

 

Description:

Clear Last Error Number Command: Clears the last error number so that a subsequent execution

 

of ERRN returns # 0h, and clears the last error message.

 

Access:

!°LLERROR ERR0

( °is the left-shift of the Nkey).

Input/Output:

None

 

 

See also:

DOERR, ERRM, ERRN

 

 

ERRM

Command

 

 

Type:

 

 

Description:

Error Message Command: Returns a string containing the error message of the most recent

 

calculator error.

 

 

 

ERRM returns the string for an error generated by DOERR. If the argument to DOERR was 0,

 

the string returned by ERRM is ‘Interrupted’.

 

 

Access:

!°LLERROR ERRM

( °is the left-shift of the Nkey).

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 1/Item 1

 

 

 

 

 

 

 

 

→

“error message”

 

The program

 

Example:

« IFERR + THEN ERRM END » returns "Bad Argument Type" to level 1

 

if improper arguments (for example, a complex number and a binary integer) are in levels 1 and 2.

See also:

DOERR, ERRN, ERR0

 

 

 

 

 

 

 

ERRN

Command

 

 

Type:

 

 

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’.

 

 

Access:

!°LLERROR ERRN

( °is the left-shift of the Nkey).

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

Level 1/Argument 1

 

Level 1/Item 1

 

 

 

 

 

 

 

 

→

#nerror

 

 

 

Example:

The program « IFERR + THEN ERRN END » returns # 202h to level 1 if improper

 

arguments (for example, a complex number and a binary integer) are in levels 1 and 2.

See also:

DOERR, ERRM, ERR0

 

 

 

 

 

 

 

EULER

 

 

 

 

Type:

Function

 

 

Description:

For a given integer, returns the number of integers less than the integer that are co-prime with the

 

integer. (Euler’s Φ function.)

 

 

Access:

!ÞINTEGER

 

 

Input:

A non-negative integer, or an expression that evaluates to a non-negative integer.

Output:

The number of positive integers, less than, and co-prime with, the integer.

Flags:

Exact mode must be set (flag –105 clear).

 

 

 

Numeric mode must not be set (flag –3 clear).

 

 

3-76 Full Command and Function Reference