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Wednesday, 2017-04-26 at 14:32

Hi! I can't choose any other CRC32 aglorithm from dropdown. Only basic CRC32 is available. Could you fix this? :)

Sunday, 2017-03-19 at 05:18

Your online crc calculator is very very helpful! Thanks for creating this website. It saved me a lot of time.

Thursday, 2017-03-09 at 09:22

Your CRC calcuator is the most complete one if found! Great job, it helped me a lot. Thank you.

Paul Shapshak, PhD  
Saturday, 2017-01-28 at 17:59

Many thanks for your article on basic rotations derivation.

Thursday, 2016-09-08 at 20:42

Instead of looking at .e.g. Amazon or the author's website I was curious if part 6 of 'Algorithms in C' was published yet (it's been years) (I seem to recall this was planned but without looking at the books I don't know for certain and is besides the point) - and came across your website.

I'm familiar with parsing mathematical expressions (and other types) but I still took a look at your article http://www.sunshine2k.de/coding/jav a/SimpleParser/SimpleParser.html

(although C is my favourite language it is easy to translate Java to C)

I admit I'm barely able to keep my eyes open but I could swear something is wrong (but this means maybe I'm ignoring the obvious) in the 'evaluateIntern' function (okay, 'method'): you check for '+' and evaluate - and you check for '-' and evaluate '+'.

But it's a good article anyway (though admittedly I did not read it in full what I read is good).


Saturday, 2016-07-30 at 03:14

Thanks for your analysis of the projection of a point onto a line. It was the best I found on the web using Google. It was easy to convert your Java code to C for my application.

Neil Carrington  
Thursday, 2016-07-21 at 14:39

Hello, thanks for your site. I found the 'CRC Calculator (Java)' very useful in solving an issue with customer CRC-16.
Best regards.

Alberto Paglia  
Friday, 2016-06-10 at 13:48

Thanks Bastian for your CRC tutorial. It is the most comprehensive, didactic and step-by-step conceived among the documentation I've found. Clear and effective!

Monday, 2016-02-29 at 19:18

Hi, Thanks for your site!
I appreciate your CRC calulator page.
It's very useful.
I have verified the CRC-32 part with this site:
Thanks! /Kristian

Jim Arlow  
Saturday, 2016-01-09 at 11:39

Hi Bastion,

I very much enjoy your articles on geometric algorithms! I am interested because I have recently written an interactive eBook on computational geometry using Mathematica (http://www.clearviewtraining.com/in teractive-computational.html). You don't need Mathematica to view the book - you can download a free CDF file player. I imagine you could have a lot of fun with Mathematica! I would be very happy to send you a copy of the book if you let me know your email address.

Best regards,


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