System Command ERASE - Revision history

Paul Robinson at 20:22, 13 October 2019

2019-10-13T20:22:51Z

← Older revision		Revision as of 16:22, 13 October 2019
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	<br><br>'''See also: [[System_Function_EX\|Quad EX or ⎕EX]]'''		<br><br>'''See also: [[System_Function_EX\|Quad EX or ⎕EX]]'''
	<br><br>		<br><br>
	{{Commands}}		{{Commands\|ERASE}}
	{{article footer}}		{{article footer\|0\|NO}}

Sudleyplace at 16:56, 17 April 2018

2018-04-17T16:56:46Z

← Older revision		Revision as of 12:56, 17 April 2018
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	The ~~'''~~)ERASE~~'''~~ command ''erases'' or ''deletes'' the named function(s) or variable(s) in the current workspace. The workspace is not changed on disk unless you )SAVE the workspace. Once a variable or function is )~~ERASEd~~ it is no longer defined. Attempting to erase a non-existent function or variable returns an error message. ~~'''~~)ERASE~~'''~~ with no arguments has no effect; to erase everything in the workspace, use the [[System Command Clear\|)CLEAR]] command to start a fresh, clear workspace.		The <apll>)ERASE</apll> command ''erases'' or ''deletes'' the named function(s) or variable(s) in the current workspace. The workspace is not changed on disk unless you )SAVE the workspace. Once a variable or function is <apll>)ERASE</apll>d it is no longer defined. Attempting to erase a non-existent function or variable returns an error message. <apll>)ERASE</apll> with no arguments has no effect; to erase everything in the workspace, use the [[System Command Clear\|)CLEAR]] command to start a fresh, clear workspace.
	==Example==		==Example==
	<apll><pre>		<apll><pre>

Sudleyplace at 15:40, 17 April 2018

2018-04-17T15:40:06Z

← Older revision		Revision as of 11:40, 17 April 2018
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	The ''')ERASE''' command ''erases'' or ''deletes'' the named function(s) or variable(s) in the current workspace. The workspace is not changed on disk unless you )SAVE the workspace. Once a variable or function is )ERASEd it is no longer defined. Attempting to erase a non-existent function or variable returns an error message. ''')ERASE''' with no arguments has no effect; to erase everything in the workspace, use the [[System Command Clear\|)CLEAR]] command to start a fresh, clear workspace.		The ''')ERASE''' command ''erases'' or ''deletes'' the named function(s) or variable(s) in the current workspace. The workspace is not changed on disk unless you )SAVE the workspace. Once a variable or function is )ERASEd it is no longer defined. Attempting to erase a non-existent function or variable returns an error message. ''')ERASE''' with no arguments has no effect; to erase everything in the workspace, use the [[System Command Clear\|)CLEAR]] command to start a fresh, clear workspace.
	==Example==		==Example==
	<~~code~~>		<apll><pre>
	~~      ~~)vars~~<br/>~~		)vars
	a0 q ~~<br/>~~		a0 q
	~~      ~~pi←3.1415926~~<br/>~~		pi←3.1415926
	~~      ~~)fns~~<br/>~~		)fns
	function function2 ~~<br/>~~		function function2
	~~      ~~)vars~~<br/>~~		)vars
	a0 pi q ~~<br/>~~		a0 pi q
	~~      ~~⎕vr 'function'~~<br/>~~		⎕vr 'function'
	~~    ~~∇ function~~<br/>~~		∇ function
	[1]~~   ~~"this is a function"~~<br/>~~		[1] "this is a function"
	[2] ~~<br/>~~		[2]
	~~    ~~∇ 2013 3 13 11 5 38 975 (UTC)~~<br/>~~		∇ 2013 3 13 11 5 38 975 (UTC)
	~~      ~~⎕vr "function2"~~<br/>~~		⎕vr "function2"
	~~    ~~∇ function2~~<br/>~~		∇ function2
	[1] 'This is another function'~~<br/>~~		[1] 'This is another function'
	[2] ~~<br/>~~		[2]
	~~    ~~∇ 2013 3 13 11 6 0 350 (UTC)~~<br/>~~		∇ 2013 3 13 11 6 0 350 (UTC)
	~~      ''')ERASE'''<br/>~~		)fns
	~~      ~~)fns~~<br/>~~		function function2
	function function2 ~~<br/>~~		)vars
	~~      ~~)vars~~<br/>~~		a0 pi q
	a0 pi q ~~<br/>~~		)ERASE function2 pi
	~~      '''~~)ERASE~~'''~~ function2 pi~~<br/>~~		)fns
	~~      ~~)fns~~<br/>~~		function
	function ~~<br/>~~		)vars
	~~      ~~)vars~~<br/>~~		a0 q
	a0 q ~~<br/>~~		)ERASE q f
	~~      '''~~)ERASE~~'''~~ q f ~~<br/>~~		NOT ERASED: f
	NOT ERASED: f~~<br/>~~		)vars
	~~      ~~)vars~~<br/>~~
	a0		a0
	</~~code~~>		</pre></apll>
	<br><br>'''See also: [[System_Function_EX\|Quad EX or ⎕EX]]'''		<br><br>'''See also: [[System_Function_EX\|Quad EX or ⎕EX]]'''
	<br><br>		<br><br>
	{{Commands}}		{{Commands}}
	{{article footer}}		{{article footer}}

Robert Wallick: Bolded use of )ERASE, added link to ⎕EX

2015-01-27T17:37:37Z

Bolded use of )ERASE, added link to ⎕EX

← Older revision		Revision as of 13:37, 27 January 2015
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	The )ERASE command erases the named function(s) or variable(s) in the current workspace. The workspace is not changed on disk unless you )SAVE the workspace. Once a variable or function is )ERASEd it is no longer defined. Attempting to erase a non-existent function or variable returns an error message. )ERASE with no arguments has no effect; to erase everything in the workspace, use the [[System Command Clear\|)CLEAR]] command to start a fresh, clear workspace.		The ''')ERASE''' command ''erases'' or ''deletes'' the named function(s) or variable(s) in the current workspace. The workspace is not changed on disk unless you )SAVE the workspace. Once a variable or function is )ERASEd it is no longer defined. Attempting to erase a non-existent function or variable returns an error message. ''')ERASE''' with no arguments has no effect; to erase everything in the workspace, use the [[System Command Clear\|)CLEAR]] command to start a fresh, clear workspace.
	==Example==		==Example==
	<code>		<code>
Line 19:		Line 19:
	[2] <br/>		[2] <br/>
	∇ 2013 3 13 11 6 0 350 (UTC)<br/>		∇ 2013 3 13 11 6 0 350 (UTC)<br/>
	)~~erase~~<br/>		''')ERASE'''<br/>
	)fns<br/>		)fns<br/>
	function function2 <br/>		function function2 <br/>
	)vars<br/>		)vars<br/>
	a0 pi q <br/>		a0 pi q <br/>
	)~~erase~~ function2 pi<br/>		''')ERASE''' function2 pi<br/>
	)fns<br/>		)fns<br/>
	function <br/>		function <br/>
	)vars<br/>		)vars<br/>
	a0 q <br/>		a0 q <br/>
	)~~erase~~ q f <br/>		''')ERASE''' q f <br/>
	NOT ERASED: f<br/>		NOT ERASED: f<br/>
	)vars<br/>		)vars<br/>
	a0		a0
	</code>		</code>
			<br><br>'''See also: [[System_Function_EX\|Quad EX or ⎕EX]]'''
			<br><br>
	{{Commands}}		{{Commands}}
	{{article footer}}		{{article footer}}

Paul Robinson at 21:52, 26 November 2014

2014-11-26T21:52:20Z

← Older revision		Revision as of 17:52, 26 November 2014
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	{{Commands}}		{{Commands}}
	[{article footer}}		{{article footer}}

Paul Robinson at 21:51, 26 November 2014

2014-11-26T21:51:36Z

← Older revision		Revision as of 17:51, 26 November 2014
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	{{Commands}}		{{Commands}}
			[{article footer}}

Paul Robinson: new

2013-03-13T11:18:52Z

new

New page

The )ERASE command erases the named function(s) or variable(s) in the current workspace. The workspace is not changed on disk unless you )SAVE the workspace. Once a variable or function is )ERASEd it is no longer defined. Attempting to erase a non-existent function or variable returns an error message. )ERASE with no arguments has no effect; to erase everything in the workspace, use the [[System Command Clear|)CLEAR]] command to start a fresh, clear workspace.
==Example==
<code>
      )vars 
a0 q 
      pi←3.1415926 
      )fns 
function function2 
      )vars 
a0 pi q 
      ⎕vr 'function' 
    ∇ function 
[1]   "this is a function" 
[2] 
    ∇ 2013 3 13 11 5 38 975 (UTC) 
      ⎕vr "function2" 
    ∇ function2 
[1] 'This is another function' 
[2] 
    ∇ 2013 3 13 11 6 0 350 (UTC) 
      )erase 
      )fns 
function function2 
      )vars 
a0 pi q 
      )erase function2 pi 
      )fns 
function 
      )vars 
a0 q 
      )erase q f 
NOT ERASED: f 
      )vars 
a0
</code>

{{Commands}}