kandi X-RAY | trick Summary
kandi X-RAY | trick Summary
The Trick Simulation Environment, developed at the NASA Johnson Space Center, is a powerful simulation development framework that enables users to build applications for all phases of space vehicle development. Trick expedites the creation of simulations for early vehicle design, performance evaluation, flight software development, flight vehicle dynamic load analysis, and virtual/hardware in the loop training. Trick's purpose is to provide a common set of simulation capabilities that allow users to concentrate on their domain specific models, rather than simulation-specific functions like job ordering, input file processing, or data recording. Trick is released under the NASA Open Source Agreement Version 1.3 license.
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Community Discussions
Trending Discussions on trick
QUESTION
I have this class which is basically a wrapper for a Str attribute:
...ANSWER
Answered 2022-Mar-28 at 18:52Holy crap, I took a wild guess and passed the $string
in with a value
argument:
QUESTION
I have run my app but still Device Manager is saying
No emulators are currently running. To launch an emulator use the Device Manager or run your app while targeting a virtual device
As you can see a green dot in the emulator that means "Emulator is running"
And some time emulator is showed but when I click on screen then emulator gone
I think this version of the android studio has more bugs when compared to its previous version
Do you guys have any tricks or solutions?
Any help will be is always appreciated!
...ANSWER
Answered 2022-Feb-16 at 04:48I have 2 Solutions so you can try both if one doesn't work
Solution No 1Select device manager and select your device and select the drop-down menu
then click on the show on disk option
then delete all files that have the .lock
extension and run your emulator again.
You can get a normal emulator like previous time android studio have, so to get the previous emulator in the new version of android studio you can do these steps
open the settings tab by following the below steps or by pressing Ctrl + Alt + S
Select File > Settings > Tools > Emulator
then unTick the option name Launch in a Tool Window then click okay now you got the previous emulator. and if in the emulator you got any issues you can check This Solution for Emulator on StackOverFlow
QUESTION
Is there a more idiomatic way to express something like the following?
...ANSWER
Answered 2022-Jan-27 at 07:32There are many ways to do it. One of the simplest (and arguably most readable) is something like this:
QUESTION
I was reading the GCC documentation on C and C++ function attributes. In the description of the error
and warning
attributes, the documentation casually mentions the following "trick":
error ("message")
warning ("message")
If the
error
orwarning
attribute is used on a function declaration and a call to such a function is not eliminated through dead code elimination or other optimizations, an error or warning (respectively) that includes message is diagnosed. This is useful for compile-time checking, especially together with__builtin_constant_p
and inline functions where checking the inline function arguments is not possible throughextern char [(condition) ? 1 : -1];
tricks.While it is possible to leave the function undefined and thus invoke a link failure (to define the function with a message in
.gnu.warning*
section), when using these attributes the problem is diagnosed earlier and with exact location of the call even in presence of inline functions or when not emitting debugging information.
There's no further explanation. Perhaps it's obvious to programmers immersed in the environment, but it's not at all obvious to me, and I could not find any explanation online. What is this technique and when might I use it?
...ANSWER
Answered 2022-Jan-23 at 04:53I believe the premise is to have a compile time assert functionality. Suppose that you wrote
QUESTION
I'm having trouble understanding how/why parentheses work where they otherwise should not work®.
...ANSWER
Answered 2022-Jan-09 at 16:14Note: When referring to documentation and source code, I provide links to an unofficial GitHub mirror of R's official Subversion repository. The links are bound to commit 97b6424 in the GitHub repo, which maps to revision 81461
in the Subversion repo (the latest at the time of this edit).
substitute
is a "special" whose arguments are not evaluated (doc).
QUESTION
This code creates a race condition:
...ANSWER
Answered 2021-Dec-27 at 17:33Reading the docs better, I think there's the answer:
The mechanism used by the CPython interpreter to assure that only one thread executes Python bytecode at a time. This simplifies the CPython implementation by making the object model (including critical built-in types such as dict) implicitly safe against concurrent access. Locking the entire interpreter makes it easier for the interpreter to be multi-threaded, at the expense of much of the parallelism afforded by multi-processor machines.
However, some extension modules, either standard or third-party, are designed so as to release the GIL when doing computationally-intensive tasks such as compression or hashing. Also, the GIL is always released when doing I/O.
I don't know the internals, but guess each line or block of this bytecode is executed alone, and other threads are waiting (which makes it slow). But some lines consist of multiple blocks, and aren't atomic.
Here's what you get if run dis.dis('x[0] += 1')
:
QUESTION
I have a game written using SDL2, and the SDL2 renderer (hardware accelerated) for drawing. Is there a trick to draw filled quads or triangles?
At the moment I'm filling them by just drawing lots of lines (SDL_Drawlines), but the performance stinks.
I don't want to go into OpenGL.
...ANSWER
Answered 2021-Oct-05 at 09:52Not possible. SDL2 does not include a full-fledged rendering engine.
Some options:
You could adopt Skia (the graphics library used in Chrome, among ohters) and then either stick with a software renderer, or instantiate an OpenGL context and use the hardware backend.
You could use another 2D drawing library such as Raylib
Or just bite the bullet and draw your triangles using OpenGL.
QUESTION
When I use Python with colab, you can access the underlying operating system using things like !
and %%shell
, e.g., !ls
to list the files.
When I use colab with the R kernel, the !
and %%shell
tricks don't work. Is there a way to call the shell from colab in this case?
ANSWER
Answered 2021-Nov-23 at 12:59There is the base R function system
which allows you to call the shell behind the Notebook. Since colab suppresses the stdout, one needs to set the option intern = TRUE
to see the result as an R character vector. To properly display line breaks, I defined a function called shell_call
which is analog to !
in ipython:
QUESTION
I’ve had no luck so far with linking a Haskell library to a Rust project. I’ve had a lot of errors, the latest being the recompile with -fPIC
for ghc
.
I’ve managed to get a functional example of dynamically linking — but have been unable to get it linked statically.
Attaching my current setup right now:
build.rs
...
ANSWER
Answered 2021-Nov-25 at 14:42I compiled the Haskell library and C shim at once, passing the -staticlib
flag:
QUESTION
I am trying to navigate to "/quiz" when Start Quiz button is clicked.
However when I compile my code I am getting the following error on the website application: [Home] is not a component. All component children of must be a or
I am new to react and if anyone can help me I would be grateful!
Here is my code for App.js:
...ANSWER
Answered 2021-Nov-23 at 03:20Only Route
or React.Fragment
are allowed to be children of the Routes
component, and vice-versa. You are already rendering a Home
component on the "/" path, so remove the extraneous component. It appears you are also using
react-router-dom
v6, so the Route
components no longer render components via a render
or component
prop, they now render components as JSX on the element
prop.
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