大约有 42,000 项符合查询结果（耗时：0.0781秒） [XML]
Understanding FFT output
...ex number (that what's your real and imaginary array is). Instead you want to look for the magnitude of the frequency which is defined as sqrt (real * real + imag * imag). This number will always be positive. Now all you have to search is for the maximum value (ignore the first entry in your array. ...
Visual Studio 64 bit?
...aw speed hit (your mileage may vary). So
you start in a hole and you have to dig yourself out of that hole by
using the extra memory above 4G to your advantage. In Visual Studio
this can happen in some large solutions but I think a preferable thing
to do is to just use less memory in the first pla...
How to serve static files in Flask
So this is embarrassing. I've got an application that I threw together in Flask and for now it is just serving up a single static HTML page with some links to CSS and JS. And I can't find where in the documentation Flask describes returning static files. Yes, I could use render_template but I ...
How to take screenshot of a div with JavaScript?
...
No, I don't know of a way to 'screenshot' an element, but what you could do, is draw the quiz results into a canvas element, then use the HTMLCanvasElement object's toDataURL function to get a data: URI with the image's contents.
When the quiz is fin...
Is 1.0 a valid output from std::generate_canonical?
...oblem is in mapping from the codomain of std::mt19937 (std::uint_fast32_t) to float; the algorithm described by the standard gives incorrect results (inconsistent with its description of the output of the algorithm) when loss of precision occurs if the current IEEE754 rounding mode is anything other...
How exactly does CMake work?
...
The secret is that you don't have to understand what the generated files do.
CMake introduces a lot of complexity into the build system, most of which only pays off if you use it for building complex software projects.
The good news is that CMake does a goo...
How to use sed to remove the last n lines of a file
I want to remove some n lines from the end of a file. Can this be done using sed?
22 Answers
...
How do I show a console output/window in a forms application?
To get stuck in straight away, a very basic example:
11 Answers
11
...
How to convert local time string to UTC?
How do I convert a datetime string in local time to a string in UTC time ?
21 Answers
...
User Authentication in ASP.NET Web API
This topic has been incredibly confusing for me. I am a rookie in HTTP apps but need to develop an iPhone client that consumes JSON data from somewhere. I chose Web API from MS because it seemed easy enough but when it comes to authenticating users, things get quite frustrating.
...