HP 48gII Graphing, 50g Graphing manual Ddays, Decr, « program » or program name, Date1 Date2

Input/Output:

Level 1/Argument 1	Level 1/Item 1
« program » or 'program name'	→

See also: HALT, NEXT

DDAYS

Type: Command

Description: Delta Days Command: Returns the number of days between two dates.

If the argument 1/level 2 date is chronologically later than the argument 2/ level 1 date, the result is negative. The range of allowable dates is October 15, 1582, to December 31, 9999.

Access:	…ÓTOOLS LDDAYS		( Óis the rightshift of the		9 key).
	…&9LDDAYS
Flags:	Date Format (–42)
Input/Output:
		Level 2/Argument 1	Level 1/Argument 2		Level 1/Item 1
		date1	date2	→	xdays
See also:	DATE, DATE+
DEC	Command
Type:

Description: Decimal Mode Command: Selects decimal base for binary integer operations. (The default base is decimal.)

Binary integers require the prefix #. Binary integers entered and returned in decimal base automatically show the suffix d. If the current base is not decimal, then you can enter a decimal number by ending it with d. It will be displayed in the current base when it is entered.

The current base does not affect the internal representation of binary integers as unsigned binary numbers.

Access:	!´BASE DEC		( ´is the leftshift of the	Pkey).
	!Ú BASE DEC		( Ú is the leftshift of the 6key).
Flags:	Binary Integer Wordsize (–5 through –10), Binary Integer Base (–11, –12)
Input/Output:	None
See also:	BIN, HEX, OCT, RCWS, STWS
DECR	Command
Type:
Description:	Decrement Command: Takes a variable, subtracts 1, stores the new value back into the original
	variable, and returns the new value. The contents of name must be a real number or an integer.
Access:	!°MEMORY ARITHMETIC DECR( °is the leftshift of the			Nkey).
Input/Output:
		Level 1/Argument 1		Level 1/Item 1
		'name'	→	xnew
Example 1:	If 35.7 is stored in A, 'A' DECR returns 34.7.
Example 2:	The following program counts down from 100 to 0 and leaves the integers 100 to 0 on the stack:

«100 'A' STO WHILE A REPEAT 'A' DECR END 'A' PURGE »

See also: INCR, STO+, STO–

Full Command and Function Reference 351