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What is the GAC in .NET?
...DIR> ..
04/11/2009 12:20 PM <DIR> 2.0.0.0__b77a5c561934e089
0 File(s) 0 bytes
3 Dir(s) 90,538,311,680 bytes free
C:\Windows\assembly\GAC_64\System.Data>cd 2.0.0.0__b77a5c561934e089
C:\Windows\assembly\GAC_64\System.Data\...
Performance surprise with “as” and nullable types
...out a dozen instructions. This needed to be really efficient back in .NET 1.0 when boxing was common.
Casting to int? takes a lot more work. The value representation of the boxed integer is not compatible with the memory layout of Nullable<int>. A conversion is required and the code is tri...
Does Python SciPy need BLAS?
...r BLAS, LAPACK, NumPy, and SciPy.
## For GNU compiler on 32-bit systems:
#g77 -O2 -fno-second-underscore -c *.f # with g77
#gfortran -O2 -std=legacy -fno-second-underscore -c *.f # with gfortran
## OR for GNU compiler on 64-bit systems:
#g77 -O3 -m64 -fno-second-underscore -fP...
Turn a number into star rating display using jQuery and CSS
... <meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Star Rating</title>
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.9.0/css/all.min.css" rel...
Are list-comprehensions and functional functions faster than “for loops”?
...l version
dt_p = time.time() - t0_p
f_vs_p = dt_p / dt_f
if f_vs_p >= 1.0:
print('Time benefit of functional progamming:', f_vs_p,
'times as fast for', n_points, 'points')
else:
print('Time penalty of functional programming:', 1 / f_vs_p,
'times as slow for', n_poi...
What kind of Garbage Collection does Go use?
...upports finalizers on objects
there is no support for weak references
Go 1.0 garbage collector:
same as Go 1.1, but instead of being mostly precise the garbage collector is conservative. The conservative GC is able to ignore objects such as []byte.
Replacing the GC with a different one is cont...
HTTP status code for a partial successful request
... for you. If you do, you could do something like so:
<?xml version="1.0" encoding="utf-8" ?>
<D:multistatus xmlns:D='DAV:'>
<D:response>
<D:user>user-123</D:user>
<D:status>success</D:status>
</D:response>
<D:resp...
Notifier 通知扩展：功能强大的Android通知管理工具，支持通知通道、意图、...
...
版本
修改内容
1.0 (2020-09-07)
初始版本
2.0 (2021-03-08)
完全修订和扩展版本
2.1 (2021-03-16)
某些方法声明为 public，以便 KeepAlive 扩展可以调用它们（对功...
Maven: how to override the dependency added by a library
...used. This can be useful if your project A includes an external project B v1.0 that includes another external project C v1.0. Sometimes it happens that a security breach is found in project C v1.0 which is corrected in v1.1, but the developers of B are slow to update their project to use v1.1 of C. ...
Checking images for similarity with OpenCV
...r pictures the sum will return 1:
In[1]: np.sum(picture1_norm**2)
Out[1]: 1.0
2) If they aren't similar, you'll get a value between 0 and 1 (a percentage if you multiply by 100):
In[2]: np.sum(picture2_norm*picture1_norm)
Out[2]: 0.75389941124629822
Please notice that if you have colored pictu...