Programmer Guide/Command Reference/EVAL/ydiff - Revision history

Toni at 08:09, 9 March 2018

2018-03-09T08:09:39Z

← Older revision		Revision as of 10:09, 9 March 2018
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	;Usage 3: <code>ydiff(<var>k<sub>number</sub></var>, <var>x<sub>vector</sub></var>)</code>		;Usage 3: <code>ydiff(<var>k<sub>number</sub></var>, <var>x<sub>vector</sub></var>)</code>
	;Result 3: The result is the vector ''r'' with <code>nrow(''y'')-1</code>elements. This version is normally used for signal differentiation (with: 0 ≤ <var>k<sub>number</sub></var> ≤ 1).		;Result 3: The result is the vector ''r'' with <code>nrow(''y'')-1</code>elements. This version is normally used for signal differentiation (with: 0 ≤ <var>k<sub>number</sub></var> ≤ 1).
	::<code>''r''[i]=''x''[i+1]-''k''.''y''[i]; with: i=0..nrow(''y'')-2</code>		::<code>''r''[i]=''x''[i+1]-''k''.''x''[i]; with: i=0..nrow(''y'')-2</code>

	;See also: [[../yint\|yint]]		;See also: [[../yint\|yint]]

	[[../#Functions\|<function list>]]		[[../#Functions\|<function list>]]

Toni at 08:09, 9 March 2018

2018-03-09T08:09:18Z

← Older revision		Revision as of 10:09, 9 March 2018
Line 11:		Line 11:
	----		----
	;Usage 3: <code>ydiff(<var>k<sub>number</sub></var>, <var>x<sub>vector</sub></var>)</code>		;Usage 3: <code>ydiff(<var>k<sub>number</sub></var>, <var>x<sub>vector</sub></var>)</code>
	;Result 3: The result is the vector ''r'' with <code>nrow(''y'')-1</code>elements. This version is normally used for signal differentiation (with: 0 ≤ <var>k<sub>number</sub></var> &le 1).		;Result 3: The result is the vector ''r'' with <code>nrow(''y'')-1</code>elements. This version is normally used for signal differentiation (with: 0 ≤ <var>k<sub>number</sub></var> ≤ 1).
	::<code>''r''[i]=''x''[i+1]-''k''.''y''[i]; with: i=0..nrow(''y'')-2</code>		::<code>''r''[i]=''x''[i+1]-''k''.''y''[i]; with: i=0..nrow(''y'')-2</code>

Toni at 08:08, 9 March 2018

2018-03-09T08:08:51Z

← Older revision		Revision as of 10:08, 9 March 2018
Line 10:		Line 10:
	::<code>''r''[i]=(''y''[i+1]-''y''[i])/(''x''[i+1]-''x''[i]); with: i=0..nrow(''y'')-2</code>		::<code>''r''[i]=(''y''[i+1]-''y''[i])/(''x''[i+1]-''x''[i]); with: i=0..nrow(''y'')-2</code>
	----		----
			;Usage 3: <code>ydiff(<var>k<sub>number</sub></var>, <var>x<sub>vector</sub></var>)</code>
			;Result 3: The result is the vector ''r'' with <code>nrow(''y'')-1</code>elements. This version is normally used for signal differentiation (with: 0 ≤ <var>k<sub>number</sub></var> &le 1).
			::<code>''r''[i]=''x''[i+1]-''k''.''y''[i]; with: i=0..nrow(''y'')-2</code>

	;See also: [[../yint\|yint]]		;See also: [[../yint\|yint]]

	[[../#Functions\|<function list>]]		[[../#Functions\|<function list>]]

193.171.195.48 at 11:22, 21 April 2011

2011-04-21T11:22:47Z

← Older revision		Revision as of 13:22, 21 April 2011
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	::<code>''r''[i]=(''y''[i+1]-''y''[i])/(''x''[i+1]-''x''[i]); with: i=0..nrow(''y'')-2</code>		::<code>''r''[i]=(''y''[i+1]-''y''[i])/(''x''[i+1]-''x''[i]); with: i=0..nrow(''y'')-2</code>
	----		----
	;See also: [[~~Programmer_Guide/Command_Reference/EVAL~~/yint\|yint]]		;See also: [[../yint\|yint]]

	[[~~Programmer_Guide~~/~~Command_Reference/EVAL~~#Functions\|<function list>]]		[[../#Functions\|<function list>]]

Toni at 06:48, 13 April 2011

2011-04-13T06:48:55Z

← Older revision		Revision as of 08:48, 13 April 2011
Line 10:		Line 10:
	::<code>''r''[i]=(''y''[i+1]-''y''[i])/(''x''[i+1]-''x''[i]); with: i=0..nrow(''y'')-2</code>		::<code>''r''[i]=(''y''[i+1]-''y''[i])/(''x''[i+1]-''x''[i]); with: i=0..nrow(''y'')-2</code>
	----		----
	[[Programmer_Guide/Command_Reference/EVAL/yint\|yint]]		;See also: [[Programmer_Guide/Command_Reference/EVAL/yint\|yint]]

	[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]		[[Programmer_Guide/Command_Reference/EVAL#Functions\|<function list>]]

Toni at 06:46, 13 April 2011

2011-04-13T06:46:21Z

@@ Line 1: / Line 1: @@
 {{DISPLAYTITLE:{{SUBPAGENAME}}}}
-=====ydiff=====
+Calculates the differentiation (differnce quotients) of the vector ''y'' = f(''x'').
-Calculates the differentiation <code>r</code> of the vector <var>y</var> with <code>n-1</code> elements.
+[[Programmer_Guide/Command_Reference/EVAL#Functions|<function list>]]

Admin: 1 revision: Initial import

2010-11-18T16:31:42Z

1 revision: Initial import

← Older revision	Revision as of 18:31, 18 November 2010
(No difference)

193.171.195.8: initial import

2010-05-17T13:05:27Z

initial import

New page

{{DISPLAYTITLE:{{SUBPAGENAME}}}}
=====ydiff=====

Calculates the differentiation <code>r</code> of the vector <var>y</var> with <code>n-1</code> elements.

=====Usage:=====

<code>ydiff(<var>y</var>)</code>

=====Parameters:=====

;<var>y</var>

:The y data vector.

=====Result:=====

r[i] = <var>y</var>[i+1] - <var>y</var>[i]

=====Usage:=====

<code>ydiff(<var>y</var>,<var>dx</var>)</code>

=====Parameters:=====

;<var>dx</var>

:The <var>x</var> increment.

=====Result:=====

r[i] = (<var>y</var>[i+1] - <var>y</var>[i])/<var>dx</var>

=====Usage:=====

<code>ydiff(<var>y</var>,<var>x</var>)</code>

=====Parameters:=====

;<var>x</var>

:The x data vector with <code>n</code> elements.

=====Result:=====

r[i] = (<var>y</var>[i+1] - <var>y</var>[i])/(<var>x</var>[i+1] - <var>x</var>[i])