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How do you detect where two line segments intersect? [closed]

... intersect the intersection point may be stored in the floats i_x and i_y. char get_line_intersection(float p0_x, float p0_y, float p1_x, float p1_y, float p2_x, float p2_y, float p3_x, float p3_y, float *i_x, float *i_y) { float s1_x, s1_y, s2_x, s2_y; s1_x = p1_x - p0_x; s1_y = p1...
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What are the differences between numpy arrays and matrices? Which one should I use?

... here. Instead of performing fewer checks, using matrix*matrix requires an extra function call. So the advantage of using matrix is purely syntactic, not better performance. – unutbu Sep 18 '17 at 20:44 ...
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Unknown provider: $modalProvider

... Just an extra side note for an issue I also experienced today: I had a similar error "Unknown provider: $aProvider" when I turned on minification/uglify of my source code. As mentioned in the Angular docs tutorial (paragraph: "A No...
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Why does one often see “null != variable” instead of “variable != null” in C#?

... In earlier times, people would forget the '!' (or the extra '=' for equality, which is more difficult to spot) and do an assignment instead of a comparison. putting the null in front eliminates the possibility for the bug, since null is not an l-value (I.E. it can't be assigned ...
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Is there a “standard” format for command line/shell help text?

...tion that would be in a manpage as part of the program --help output. This extra will include longer descriptions, concepts explained, usage samples, known limitations and bugs, how to report a bug, and possibly a 'see also' section for related commands. I hope this helps. ...
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How to measure time in milliseconds using ANSI C?

...B_p->tv_sec * 1000000000) + timeB_p->tv_nsec); } int main(int argc, char **argv) { struct timespec start, end; clock_gettime(CLOCK_MONOTONIC, &start); // Some code I am interested in measuring clock_gettime(CLOCK_MONOTONIC, &end); uint64_t timeElapsed = timespecDiff(&amp...
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What is difference between MVC, MVP & MVVM design pattern in terms of coding c#

...aes: Data Manipulation should be done by View as it wants and this will be extra work on UI thread which may effect UI rendering if data processing is more. MVVM: After announcing Architectural components,we got access to ViewModel which provided us biggest advantage i.e it's lifecycle aware.So,it w...
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Cannot install packages using node package manager in Ubuntu

... package shall also provide a nodejs-legacy binary package at Priority: extra that contains /usr/bin/node as a symlink to /usr/bin/nodejs. No package in the archive may depend on or recommend the nodejs-legacy package, which is provided solely for upstream compatibility. This package decl...
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HTML input textbox with a width of 100% overflows table cells

...-box; as per @pricco's answer; Or using 0 margin and padding (avoiding the extra size). share | improve this answer | follow | ...
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Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags

...ns with one query. So when you query for the parent entity, it will need 2 extra queries per result, which is normally something you don't want. – Bozho Jun 18 '12 at 11:19 8 ...