Rank: 3745 based on 25 downloads (last 30 days) and 3 files submitted
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Alecsander Eitan

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Wireless Communication & Signal Processing

 

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Files Posted by Alecsander View all
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(last 30 days)
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18 Aug 2006 Base conversion of very large integers Base conversion of very large integers Author: Alecsander Eitan base conversion, large integer 8 5
  • 3.33333
3.3 | 3 ratings
04 Oct 2004 Fix string for graph title This function fixes a string before it is used as a title for a graph. Author: Alecsander Eitan annotation, customization, graph title, fix, string, graphics 12 2
  • 1.75
1.8 | 4 ratings
28 Oct 2002 Open File Utility GUI for selection files using COM/DCOM. Author: Alecsander Eitan gui tools, example, select, win32, com, files 5 7
  • 2.0
2.0 | 7 ratings
Comments and Ratings by Alecsander View all
Updated File Comments Rating
01 Apr 2011 Speech Spectrogram High quality speech spectrogram plot generation routine Author: Kamil Wojcicki

Very nice and works well.
I'll appreciate if it could support color spectrogram.

01 Apr 2011 SigPlot An advanced interface for 1-D signal visualization & editing. Author: Yannis Agiomyrgiannakis

Very nice program. Fulfills basic visualization of (audio) signals. Allows playback, pause and stop in sync with the display.
It will be great if it can support also:
1. Multiple channels
2. Play of selected are only

17 Dec 2010 XTICKLABEL_ROTATE Rotate XTickLabel to better accommodate long labels and text labels. Author: Brian Katz

12 Jul 2009 Demonstration of Gibbs' Phenomenon Demo on Gibbs' phenomenon Author: Dr RAVEENDRANATHAN KALATHIL CHELLAPPAN

Comments and Ratings on Alecsander's Files View all
Updated File Comment by Comments Rating
31 Jan 2012 Base conversion of very large integers Base conversion of very large integers Author: Alecsander Eitan Michael

OK just saw VPI - never heard of that before... thank you

31 Jan 2012 Base conversion of very large integers Base conversion of very large integers Author: Alecsander Eitan D'Errico, John

Of course there is no need to be limited by this code, when vpi exists on the file exchange. For example, here is the result of applying it to a 60 decimal digit number, something that is rather difficult to do with other codes.

vpi2bin(vpi('123456789012345678901234567890123456789012345678901234567890'))

ans =
10011101010101111010100000100111001001011110000011110011000100001011100111111100001111010010000110111100011000011011110110100100111001000110011001111111100011001011011001110001111110000101011010010

And if you want to convert to any other base, vpi2base works nicely there too.

vpi2base(vpi('123456789012345678901234567890123456789012345678901234567890'),256)
ans =
19 170 245 4 228 188 30 98 23 63 135 164 55 140 55 180 156 140 207 241 150 206 63 10 210

A good point is, for a tool that does as little as this does, it is rather complicated, requiring over 20 m-files to accomplish that task.

31 Jan 2012 Base conversion of very large integers Base conversion of very large integers Author: Alecsander Eitan Michael

This seems really useful but the answers are the same as de2bi for powers of two larger than 53. Please notice below:

>> uint64(2^60-1)

ans =

1152921504606846976

>> dec2bin_long('1152921504606846976',60)

ans =

1000000000000000000000000000000000000000000000000000000000000

>> dec2bin_long('1152921504606846976')

ans =

1000000000000000000000000000000000000000000000000000000000000

>> uint64(2^53-1)

ans =

9007199254740991

>> dec2bin_long('9007199254740991')

ans =

11111111111111111111111111111111111111111111111111111

>> uint64(2^55-1)

ans =

36028797018963968

>> dec2bin_long('36028797018963968')

ans =

10000000000000000000000000000000000000000000000000000000

15 Jul 2010 Base conversion of very large integers Base conversion of very large integers Author: Alecsander Eitan Hazel, Christopher

The bin2dec_long file did not account for the case where the string input contained all zeroes, so I added the following code just before the "conversion setup" lines:

if str2num(str_in)==0;
str_out=0;
else
%conversion setup
...(file code)
end

15 Jul 2010 Base conversion of very large integers Base conversion of very large integers Author: Alecsander Eitan Hazel, Christopher

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