tur1ng - Developer IT

[LaTeX] Math formula \[ \] in a \multicolumn{}

- by tur1ng

How can I achieve a math formula in a \multicolumn (longtable environment)? My code: \hline \multicolumn{2}{|c|}{ \[ \pi = 3.0 \] } \\ \hline does not work.

Finding a small image in a bigger one

Given an image with a large dimension ( 1.000 x 1.000). What is a good approach to find a small image (e.g. 50 x 50) in the big one? The smaller image can be rotated and differ in the size, but only with a 1:1 ratio. It's not related to any programming language - I'm just interested in pattern recognition. Thank you.

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[LaTeX] Change "List of Listings" text

- by tur1ng

I tried to change the "List of Listings" text with the command \renewcommand*{\lstlistlistingname}{List of XYZ} before my \begin{document}. What's wrong with this? By the way \renewcommand*{\lstlistingname}{NewListing} worked like a charm. Thank you

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Filtering constant noise out of a sound stream

- by tur1ng

After watching the first game of the FIFA worldcup I was very annoyed by the sound of the Vuvuzelas. A theoretical question came up about filtering that noise out of the sound stream. What algorithms are needed to remove such a "constant" noise and is it possible to keep the quality of other background sounds?

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Effect of suffixes in memory to cache operations

- by tur1ng

In x86 GNU Assembler there are different suffixes for memory related operations. E.g.: movb, movs, movw, movl, movq, movt(?) Now my question is the following: Does the suffix has ANY effect on how the processor is getting the data out of main memory or will always be one or more 32-bit (x86) chunks loaded into the cache ? What are the effects beside the memory access?

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Effect of suffixes in memory operations

- by tur1ng

In x86 GNU Assembler there are different suffixes for memory related operations. E.g.: movb, movs, movw, movl, movq, movt(?) Now my question is the following: Does the suffix has ANY effect on how the processor is getting the data out of main memory or will always be one or more 32-bit (x86) chunks loaded into the cache ? What are the effects beside the memory access?

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C: Convert A ? B : C into if (A) B else C

- by tur1ng

I was looking for a tool that can convert C code expressions for the form: a = (A) ? B : C; into the 'default' syntax with if/else statements: if (A) a = B else a = C Does someone know a tool that's capable to do such a transformation? I work with GCC 4.4.2 and create a preprocessed file with -E but do not want such structures in it.

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