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Fastest way to determine if an integer's square root is an integer
... In my actual code, I use the following modified loop:
int64 r, t, z;
r = start[(x >> 3) & 1023];
do {
z = x - r * r;
if( z == 0 )
return true;
if( z < 0 )
return false;
t = z & (-z);
r += (z & t) >> 1;
if( r > (t >> 1) )
...
Algorithm to detect corners of paper sheet in photo
...but your second image, but are you defining a threshold tolerance for your start and end values in the accumulator? The HT doesn't really define start and end positions, rather the m and c values in y=mx+c. See here - note that this is using polar coordinates in the accumulator rather than cartesian...
Best way to define private methods for a class in Objective-C
I just started programming Objective-C and, having a background in Java, wonder how people writing Objective-C programs deal with private methods.
...
What is 'Context' on Android?
...as databases
Simpler terms (example 1)
Consider Person-X is the CEO of a start-up software company.
There is a lead architect present in the company, this lead architect
does all the work in the company which involves such as database, UI
etc.
Now the CEO Hires a new Developer.
It is the Archit...
Media Queries: How to target desktop, tablet, and mobile?
...o the comment, min-width is standard in "mobile-first" design, wherein you start by designing for your smallest screens, and then add ever-increasing media queries, working you way onto larger and larger screens. Regardless of whether you prefer min-, max-, or combinations thereof, be cognizant of t...
HTML5 record audio to file
...set><legend>RECORD AUDIO</legend>
<input onclick="startRecording()" type="button" value="start recording" />
<input onclick="stopRecording()" type="button" value="stop recording and play" />
</fieldset>
<script>
...
JavaScript to scroll long page to DIV
...general purpose "scroll into view" routine from scratch, you would need to start at the node you want to expose, make sure it's in the visible portion of it's parent, then repeat the same for the parent, etc, all the way until you reach the top.
One step of this would look something like this (unte...
Simulating Slow Internet Connection
...es at the wrong protocol level so you do not get to properly simulate slow start.
– Sam Saffron
Mar 16 '12 at 0:07
@Sa...
About Android image and asset sizes
...oing a 48dip image and plan to support up to xxhdpi resolution, you should start with a 144px image (192px if you want native assets for xxxhdpi) and make the following images for the densities:
ldpi | mdpi | tvdpi | hdpi | xhdpi | xxhdpi | xxxhdpi
36 x 36 | 48 x 48 | 64 x 64 | ...
Preventing console window from closing on Visual Studio C/C++ Console application
...
Starting from Visual Studio 2017 (15.9.4) there is an option:
Tools->Options->Debugging->Automatically close the console
The corresponding fragment from the Visual Studio documentation:
Automatically close the cons...