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User Authentication in ASP.NET Web API
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I am amazed how I've not been able to find a clear example of how to authenticate an user rig...
Formula to determine brightness of RGB color
...htness? Luminance?
Luminance (standard for certain colour spaces): (0.2126*R + 0.7152*G + 0.0722*B) [1]
Luminance (perceived option 1): (0.299*R + 0.587*G + 0.114*B) [2]
Luminance (perceived option 2, slower to calculate): sqrt( 0.241*R^2 + 0.691*G^2 + 0.068*B^2 ) → sqrt( 0.299*R^2 + 0.587*G^2 ...
Is there a CSS selector by class prefix?
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BoltClock♦BoltClock
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Java Persistence / JPA: @Column vs @Basic
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AdrieanKhisbe
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answered Sep 5 '09 at 14:10
djnadjna
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Grouped LIMIT in PostgreSQL: show the first N rows for each group?
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edited Aug 11 '16 at 9:08
ngspkinga
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answered May 19 '11 ...
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...findViewById(R.id.sun);
Sun.setColorFilter(ColorFilterGenerator.adjustHue(162)); // 162 degree rotation
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Is there an Eclipse line-width marker?
I have a specific project where I need to wrap every code line at 65 characters. I have set up the eclipse Java code formatter properly for this. But what I really want is a vertical line to be drawn in the editor showing where the max line width while I am typing, not just when I run the formmater....
When do I use fabs and when is it sufficient to use std::abs?
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answered Jun 25 '10 at 13:06
Mike SeymourMike Seymour
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Can I list-initialize a vector of move-only type?
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The synopsis of <initializer_list> in 18.9 makes it reasonably clear that elements of an i...
The written versions of the logical operators
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They originated in C in the header <iso646.h>. At the time there were keyboards that couldn't type the required symbols for && (for example), so the header contained #define's that would assist them in doing so, by (in our example) defining and to be &a...