Comments for Walking Randomly

Comment on Python: Braces? Not a chance! by Mike Croucher

Mike Croucher — Wed, 19 Jun 2013 08:28:12 +0000

completely agree

Comment on Python: Braces? Not a chance! by Christoph Nahr

Christoph Nahr — Tue, 18 Jun 2013 17:10:01 +0000

Ha! Forced indentation is one Python feature I really like. I’d love to see it in more languages. Such a simple way to forever banish all formatting bugs and style conflicts.

Comment on Converting from cell arrays to matrices in MATLAB by Ashraf

Ashraf — Sun, 09 Jun 2013 10:45:52 +0000

Dear Mike,
thanks for the help offer. I had solved the problem.
Cheers,

Comment on A Month of Math Software – May 2013 by Mike Croucher

Mike Croucher — Mon, 03 Jun 2013 13:06:08 +0000

Thanks Ruben, should be fixed now.

Comment on A Month of Math Software – May 2013 by Ruben

Ruben — Mon, 03 Jun 2013 06:49:56 +0000

These two links are wrong:
Making formluas for Pi and the Pink Panther and pretty much everthing else with Mathematica.
Why Would a Mathematica user care about R?

Comment on A Month of Math Software – April 2013 by Szabolcs

Szabolcs — Fri, 31 May 2013 19:49:10 +0000

I forgot to mention that the new website is http://matlink.org/

Comment on A Month of Math Software – April 2013 by Szabolcs

Szabolcs — Fri, 31 May 2013 19:48:30 +0000

Thanks Mike, it would be nice if you could mention it in May’s post tomorrow. We are releasing version 1.0 now. (It’s identical to 0.99 which we think is stable enough.) Several fixes went in since the first public release, so MATLink is faster and more reliable now.

Comment on Converting from cell arrays to matrices in MATLAB by Mike Croucher

Mike Croucher — Thu, 30 May 2013 09:35:41 +0000

Ashraf

Could you contact me via email ( http://www.walkingrandomly.com/?page_id=2055 ) and I’ll see what I can do for you.

Cheers,
Mike

Comment on Converting from cell arrays to matrices in MATLAB by Ashraf

Ashraf — Wed, 29 May 2013 20:10:46 +0000

I have the following array
val(:,:,1) = [145][2.0101e-09] [-6] [1x1 cfit] [1x1 struct] [0.5170]
….
val(:,:,100) =[144][6.0301e-09][0][1x1 cfit] [1x1 struct][0.6009]

how can I print this array to txt or convert this array to a matrix???
help please

Comment on Excel can’t add up! (Oh yes it can) by Chris

Chris — Sat, 25 May 2013 18:51:36 +0000

Just fell over this after 5 years of no comments…

You are wrong: Excel can’t add.

Using floating point for calculations isn’t necessarily recommended and for it to make an arbitrary decision on your part rather than maintain precision is unforgivable.

Fire up an HP calculator (preferably an RPN/RPL device) and enter the same things. You will get zero.

Fire up a pencil and paper and enter the same things. You will get zero.

This is the machine’s poor non-decimal FP implementation leaking into user-space unexpectedly. This is poor.

Just because standard IEEE FP stores approximate values, doesn’t mean it’s what the user wants to see or expects.

Octave/matlab is forgivable as you can specify the precision and it’s designed for approximate calculations (computations) over symbolic and numeric consistency (which is what you do on paper and decent CAS systems).

Comment on How many MATLAB toolboxes make a Mathematica 9? by Dawid

Dawid — Sat, 25 May 2013 10:52:15 +0000

On think that keeps me with Matlab is the surf and imagesc functions and their functionality. Making similar plots as you can do with surf (especially in the case of scattered data) in Mathematica is a real PAIN!

Comment on Supercomputers Vs Mobile Phones by Digital Days | Swipp Blog

Digital Days | Swipp Blog — Wed, 22 May 2013 21:11:53 +0000

[...] ago were worthy of science fiction. In fact, most people today have a handheld device that has a CPU that is at least 15X faster than a super computer in 1979. These devices, coupled with the internet (aka “the cloud”), our social graphs and the [...]

Comment on MATLAB Tutorial – Reading csv files by Theo

Theo — Sun, 19 May 2013 01:56:53 +0000

Very often fields are empty, like this
45, 67, , , , 45,12, , ,

how do you deal with those????

Thanks

Theo

Comment on Making Mathematica faster with Compile by Eric Parker

Eric Parker — Fri, 17 May 2013 15:40:43 +0000

Compile[] is nice and all, but why should we need it? Type-inference JIT compilation has been around for decades (e.g. Parc-Place Smalltalk, Self). Why can’t Mathematica cache thunks and the corresponding translated VM automatically? That and some reasonable form of aggregate data structure (or might I dream: classes), are my major complaints. But I still use it because there is nothing else like it.

Comment on Parallel MATLAB with openmp mex files by Mike Croucher

Mike Croucher — Fri, 17 May 2013 09:04:56 +0000

You are welcome Pat. Thanks for the extra tips :)

Cheers,
Mike