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Why use Ruby's attr_accessor, attr_reader and attr_writer?

...d definition yourself. For more info see slide 152 onwards from this talk (PDF) by Aaron Patterson. share | improve this answer | follow | ...
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Amazon S3 direct file upload from client browser - private key disclosure

....name); if (file) { results.innerHTML = ''; var params = { Key: n + '.pdf', ContentType: file.type, Body: file }; bucket.upload(params, function(err, data) { results.innerHTML = err ? 'ERROR!' : 'UPLOADED.'; }); } else { results.innerHTML = 'Nothing to upl
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Which parallel sorting algorithm has the best average case performance?

... The following article (PDF download) is a comparative study of parallel sorting algorithms on various architectures: Parallel sorting algorithms on various architectures According to the article, sample sort seems to be best on many parallel arch...
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Difference between fold and reduce?

...construct (they're all isomorphic constructs). (cs.nott.ac.uk/~pszgmh/fold.pdf) See: HoTT, Princeton (This comment section is too small to contain..) – Andrew Sep 21 '16 at 13:06 ...
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?

... Which one ? BSR or CNTLZ ? As I read the x86-timing.pdf referenced above, BSR is only slow on the Netburst Pentiums. I know nothing about PowerPC though. – timday Mar 23 '09 at 9:26 ...
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Is a successor for TeX/LaTeX in sight? [closed]

... LuaTeX is not an alternative to LaTeX, it is an extended TeX engine (like pdftex, XeTeX) on which both LaTeX (then called LuaLaTeX) and ConTeXt can run. (I think it is the default for today's ConTeXt.) – Paŭlo Ebermann Oct 16 '11 at 17:40 ...
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移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...移动设备网站的开发时,我们需要的是ideal viewport。那么怎么才能得到ideal viewport呢?这就该轮到meta标签出场了。 我们在开发移动设备的网站时,最常见的的一个动作就是把下面这个东西复制到我们的head标签中: <meta name="viewp...
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What is a bank conflict? (Doing Cuda/OpenCL programming)

...http://mprc.pku.cn/mentors/training/ISCAreading/1989/p380-weiss/p380-weiss.pdf from this page, you can find the detail about memory bank. but it is a little different from what is said by @Grizzly. in this page, the bank is like this bank 1 2 3 address|0, 3, 6...| |1, ...
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surface plots in matplotlib

...linewidth=0.1) fig.colorbar(surf, shrink=0.5, aspect=5) plt.savefig('teste.pdf') plt.show() If necessary you can pass vmin and vmax to define the colorbar range, e.g. surf = ax.plot_trisurf(x, y, z, cmap=cm.jet, linewidth=0.1, vmin=0, vmax=2000) Bonus Section I was wondering how to do some i...
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How do you maintain development code and production code? [closed]

...anch-by purpose model" (figure 3 in The importance of branching models /!\ pdf) share | improve this answer | follow | ...