Del - Revision history

Paul Robinson at 17:58, 24 November 2014

2014-11-24T17:58:00Z

← Older revision		Revision as of 13:58, 24 November 2014
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	or		or
	:''')EDIT z←function5 r;⎕IO'''		:''')EDIT z←function5 r;⎕IO'''
	Are identical. Note that arguments are ignored on the <big><apl>{del}</apl></big> symbol or )EDIT command if the function is already defined; if you want to change the function header of an already defined function, you must edit it directly.		Are identical. Note that arguments are ignored on the <big><apl>{del}</apl></big> symbol or )EDIT command if the function is already defined; if you want to change the function header of an already defined function, you must edit line 0 of the function directly.

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Paul Robinson at 08:25, 27 May 2013

2013-05-27T08:25:15Z

← Older revision		Revision as of 04:25, 27 May 2013
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	where '''''function''''' is the name of the function to edit; '''''leftarg←''''' if used, is the result value of this function; '''''rightarg''''', if used, is the argument to pass to the function; ''''';local1''''' etc. are optional local variables used by the function. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0. If arguments or local variables were provided as part of the declaration of a new function, they will appear in the function header on line 0 as used in the definition which was given.		where '''''function''''' is the name of the function to edit; '''''leftarg←''''' if used, is the result value of this function; '''''rightarg''''', if used, is the argument to pass to the function; ''''';local1''''' etc. are optional local variables used by the function. If the function exists, an edit window will be opened and the function will be shown in the window. If the function does not exist, a new edit window will open with an empty function other than the function name on line 0. If arguments or local variables were provided as part of the declaration of a new function, they will appear in the function header on line 0 as used in the definition which was given.

	Function names, like variables, are case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.		Function names, like variables, ''are'' case sensitive. '''PI''', '''Pi''', '''pI''', and '''pi''' are four different identifiers.

	If '''{del}''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented to allow you to enter the function header. The function header can be typed in to this window on line 0 (without using the prefix del (<big><apl>{del}</apl></big>) symbol.) Note that to close the edit window, you type Control-E, '''do not''' place the <big>{del}</big> symbol on the function header or use it to attempt to close the function by placing it on the last line of the function~~; the~~ function editor will raise a syntax error and refuse to save the function with a warning of a SYNTAX ERROR if a {del} appears in the function header; having a {del} within the function will result in a SYNTAX ERROR when the function is executed.		If '''{del}''' is used with no function name specified, a new edit window will open and a blank line 0 will be presented to allow you to enter the function header. The function header can be typed in to this window on line 0 (without using the prefix del (<big><apl>{del}</apl></big>) symbol.) Note that unlike the prior practice on older mainframe APL systems such as APL\360 or VSAPL from IBM, to close the edit window, you type Control-E, '''do not''' place the <big>{del}</big> symbol on the function header or use it to attempt to close the function by placing it on the last line of the function. The function editor will raise a syntax error and refuse to save the function with a warning of a SYNTAX ERROR if a {del} appears in the function header; having a {del} within the function will result in a SYNTAX ERROR when the function is executed.

	The '''{del}''' symbol is treated exactly as the ''')EDIT''' command, a )EDIT used alone opens a blank window to edit a new function, )EDIT followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.		The '''{del}''' symbol is treated exactly as the ''')EDIT''' command, a )EDIT used alone opens a blank window to edit a new function, )EDIT followed by the name of a function opens a window containing the existing function for editing, or opens a new window to define the contents of the function.

Paul Robinson at 00:36, 15 March 2013

2013-03-15T00:36:04Z

← Older revision		Revision as of 20:36, 14 March 2013
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	__NOTOC__		__NOTOC__
	<h1> {del} — Edit User Function — Keystroke ALT+G — Character 8711 or x2211</h1>		<h1> {del} — Edit User Function — Keystroke ALT+G — Character 8711 or x2211</h1>

			[[File:APLKB-Del.png]]
	==Usage==		==Usage==
	:''Main Article: [[Functions]]''		:''Main Article: [[Functions]]''
	The Del symbol <big>{del}</big> is the equivalent of the declaration of a '''Function, Procedure, or Subroutine''' in other programming languages. Functions in APL may or may not return a value. In NARS 2000, unlike other APL systems, the {del} symbol is only used to edit the function, it is not actually used in the header or the body of the function. The system command )EDIT may be used interchangeably with {del}.		The Del symbol <big>{del}</big> is the equivalent of the declaration of a new '''Function, Procedure, or Subroutine''' in other programming languages. or a request to edit an existing function. Functions in APL may or may not return a value. In NARS 2000, unlike other APL systems, the {del} symbol is only used to edit the function, it is not actually used in the header or the body of the function. The system command )EDIT may be used interchangeably with {del}.

	The <big>{del}</big> symbol is used to edit an APL function. There are two forms:		The <big>{del}</big> symbol is used to edit an APL function. There are two forms:

Paul Robinson at 12:55, 13 March 2013

2013-03-13T12:55:11Z

← Older revision		Revision as of 08:55, 13 March 2013
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	<h1> {del} — Edit User Function — Keystroke ALT+G — Character 8711 or x2211</h1>		<h1> {del} — Edit User Function — Keystroke ALT+G — Character 8711 or x2211</h1>
	==Usage==		==Usage==
			:''Main Article: [[Functions]]''
	The Del symbol <big>{del}</big> is the equivalent of the declaration of a '''Function, Procedure, or Subroutine''' in other programming languages. Functions in APL may or may not return a value. In NARS 2000, unlike other APL systems, the {del} symbol is only used to edit the function, it is not actually used in the header or the body of the function. The system command )EDIT may be used interchangeably with {del}.		The Del symbol <big>{del}</big> is the equivalent of the declaration of a '''Function, Procedure, or Subroutine''' in other programming languages. Functions in APL may or may not return a value. In NARS 2000, unlike other APL systems, the {del} symbol is only used to edit the function, it is not actually used in the header or the body of the function. The system command )EDIT may be used interchangeably with {del}.

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Paul Robinson at 12:43, 13 March 2013

2013-03-13T12:43:42Z

← Older revision		Revision as of 08:43, 13 March 2013
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	Are identical. Note that arguments are ignored on the <big><apl>{del}</apl></big> symbol or )EDIT command if the function is already defined; if you want to change the function header of an already defined function, you must edit it directly.		Are identical. Note that arguments are ignored on the <big><apl>{del}</apl></big> symbol or )EDIT command if the function is already defined; if you want to change the function header of an already defined function, you must edit it directly.

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Paul Robinson: Paul Robinson moved page Symbol Del to Del: When a symbol is finished, move it to the name

2013-03-13T12:23:16Z

Paul Robinson moved page Symbol Del to Del: When a symbol is finished, move it to the name

← Older revision	Revision as of 08:23, 13 March 2013
(No difference)

Paul Robinson at 12:22, 13 March 2013

2013-03-13T12:22:04Z

← Older revision		Revision as of 08:22, 13 March 2013
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	{{~~Commands~~}}		{{Keyboard}}

	~~==Example==~~
	~~==See Also==~~



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Paul Robinson: New

2013-03-13T12:20:56Z

New

@@ Line 1: / Line 1: @@
 __NOTOC__
-<h1> {del} &mdash; Start of User Function &mdash; Keystroke ?ALT+X &mdash; Character 0000</h1>
+<h1> {del} &mdash; Edit User Function &mdash; Keystroke ALT+G &mdash; Character 8711 or x2211</h1>
 ==Usage==
-The Del symbol is the equivalent of a '''Function, Procedure, or Subroutine''' declaration in other programming languages. Functions in APL may or may not return a value.
+The Del symbol <big>{del}</big> is the equivalent of the declaration of a '''Function, Procedure, or Subroutine''' in other programming languages. Functions in APL may or may not return a value. In NARS 2000, unlike other APL systems, the {del} symbol is only used to edit the function, it is not actually used in the header or the body of the function. The system command )EDIT may be used interchangeably with {del}.
 ==Example==
 ==See Also==

Paul Robinson at 04:17, 4 March 2013

2013-03-04T04:17:55Z

← Older revision		Revision as of 00:17, 4 March 2013
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	__NOTOC__		__NOTOC__
	<h1> {del} — ~~(Replace this with Meaning~~ of ~~symbol)~~ — Keystroke ?ALT+X — Character 0000</h1>		<h1> {del} — Start of User Function — Keystroke ?ALT+X — Character 0000</h1>
	==Usage==		==Usage==
			The Del symbol is the equivalent of a '''Function, Procedure, or Subroutine''' declaration in other programming languages. Functions in APL may or may not return a value.
	==Example==		==Example==
	==See Also==		==See Also==
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Paul Robinson: new

2013-03-01T14:50:18Z

new

New page

__NOTOC__
<h1> {del} — (Replace this with Meaning of symbol) — Keystroke ?ALT+X — Character 0000</h1>
==Usage==
==Example==
==See Also==

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