File:Dba plot.png

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Original file (1,200 × 1,200 pixels, file size: 170 KB, MIME type: image/png)

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Summary

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Description
English: This was created using the following gnuplot source:
 
This plot was created with Gnuplot by n.

See also w:en:User_talk:MarkSweep/archive2#Gnuplot, commons:Image:Weighting curves.png

First revision

(http://upload.wikimedia.org/wikipedia/en/archive/d/d3/20050317071653%21Dba_plot.png)

I made this. It is public domain. See my page for details. - Omegatron 01:37, Mar 5, 2005 (UTC)

Replacement for :Image:DBA.gif

Created with maxima (or gnuplot, I guess) and edited in the GIMP, since I don't have the patience to scour documentation for things I am only going to use once or twice.

H:(kA*s^4)/((s+129.4)^2*(s+676.7)*(s+4636)*(s+76655)^2);
H:ev(H,s=%I*w);
H:ev(H,kA=7.397057228624816E+9);
H:ev(H,w=2*%PI*f);
SET_PLOT_OPTION([GNUPLOT_PREAMBLE, "set log x"]);
plot2d(20*log10(abs(H)),[f,10.1,20000]);

No, I don't know what I'm doing.

with my custom functions (in maxima-init.mac):

convert voltage gain to decibels:

db(x):=float(20*log(x)/log(10));

convert decibels to voltage gain:

idb(x):=float(10^(x/20));

electrical elements in parallel:

INFIX("||")$ "||"(x,y):=x*y/(x+y);
Date 5 March 2005 (original upload date)
Source Transferred from en.wikipedia to Commons by Logan using CommonsHelper.
Author Omegatron at English Wikipedia

Licensing

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Public domain This work has been released into the public domain by its author, Omegatron at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Omegatron grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Public domain This work has been released into the public domain by its author, MarkSweep at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
MarkSweep grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

[edit]
The original description page was here. All following user names refer to en.wikipedia.
  • 2005-03-17 07:16 MarkSweep 1200×1200× (174016 bytes) larger, anti-aliased version
  • 2005-03-05 01:36 Omegatron 454×386× (7746 bytes) I made this. It is public domain. See my page for details. - ~~~~ <br/>

File history

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Date/TimeThumbnailDimensionsUserComment
current15:57, 6 January 2011Thumbnail for version as of 15:57, 6 January 20111,200 × 1,200 (170 KB)File Upload Bot (Magnus Manske) (talk | contribs) {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|This was created using the following en:gnuplot source: kA = 7.397057228624818216e9 H(s) = kA*

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